E commerce project

ELECTRONIC COMMERCE

Rahul Mathur BCA-III Year Bachelor of Computer Applications

Dezyne Ersquocole College Ajmer

wwwdezyneecolecom

Information Technology -------------------------

Submitted By

ACKNOWLEDGEMENT

I Am Thankful To Dezyne Ersquocole College To Help In Making This Project On E-

Commerce A Special Thanks To Ms Jyoti Phulwani to Guide Us Step By Step in the

Making of This Project Report

Thanking You

Rahul Mathur

Bachelor of Computer Applications

III Year

CONTENTS

1 Chapter 1

Introduction

2 Chapter 2

Electronic Commerce and the World Wide Web

3 Chapter 3

Architectural Framework for Electronic Commerce

4 Chapter 4

Technology Behind the Web

5 Chapter 5

Network Security and Firewalls

6 Chapter 6

Electronic Commerce Companies

7 Chapter 7

Pictorial Representation E-Buying Methodology

8 Chapter 8

Conclusion

Chapter 1

Introduction

Every individual of company that wants to make money and become the next

Microsoft needs to understand the market potential business implication and

technological foundations of electronic commerce But what is electronic commerce

everybody is talking about How does it affect the organisation way of doing

business What sort of technical and business skills are needed to be successful

Companies and consumers are discovering that global networking and other

technological innovations are powerful assets if used as competitive weapons in their

day to day activities E-Commerce is associated with the buying and selling of

information products and services via computer network today

Consumer desires are very hard to predict pin point or decipher in electronic markets

whose shape structure and population are still in early stages Needs envisioned

include entertainment on demand including 500 channel TV video on demand

games on demand electronic retailing via catalogues and Kiosks and home shopping

networks In future viewers will decide what they want to see and when they want to

participate and successful market places are expected to those that cater to

consumerrsquos loneliness boredom education and career In highly competitive society

where neighbours seldom talk to one another these outlets give consumer someone

to talk after going home

Letrsquos take a look at the changing conditions in the ldquonew economyrdquo with respect to the

retail industry Consumers are pushing retailers to the wall demanding lower prices

better quality and a large section of in-season goods Retailers are scrambling to fill

the order They are slashing back-office cost reducing profit-margins reducing cycle

times buying more wisely and making huge investment in technology They are

revamping distribution channels to make sure that warehouses costs are down by

reducing their average inventory levels and coordinating the consumer demand and

supply pattern

In the push to reduce prices more and more retailers are turning to overseas suppliers

in part because of cheaper labour costs Retail are the immediate line of fire and had

to do the cost cutting They put the pressure on the manufacturer and then to the

supplier end of the pipeline Electronic commerce is forcing companies to rethink the

existing ways of doing target marketing relationship marketing and even event

marketing Adaptation would include moving towards computerised ldquopaperlessrdquo

operations to reduce trading costs and facilitate the adoption of new business

process Japanese approach JIT (Just in Time) system total quality control and

quality circles are focused now for delivery of goods through electronic commerce

Chapter 2

Electronic Commerce and the World-Wide-Web We have broadly defined electronic commerce as a modern business methodology

that addresses the desire of the firm consumer and management to cut cost while

improving the quality of goods and increasing the speed of services The need for

electronic commerce stems from the demand within business and government to

make better use of computing that is better apply computer technology to improve

business process and information exchange both within an enterprise and across

organisations In short electronic commerce appears to be an integrating force that

represents the digital conversions of twenty-first century business applications and

computing technologies

Electronic commerce applications emphasize the generation and exploitation of new

business opportunity and to use the popular buzzword ldquogenerate business valuerdquo

For instance when buyer-seller transactions occur in the electronic marketplace

information is accessed absorbed arranged and sold in different ways In fact the

information a product or service is separated from the physical product or service and

has become important on its own In some cases the information can become as

crucial as the actual product or service in terms of its effect on a companyrsquos profits

In short information based business transactions are creating new ways of doing

business and even new types of business

Electronic commerce application are quite varied In its most common form E-

Commerce is also used to donate the paperless exchange of business information

using EDI Electronic Mail (E-Mail) Electronic Bulletin Boards Electronic Fund

Transfer (EFT) and other similar technologies These technologies are normally

applied in high-payoff areas recognizing that paper-handling activities usually

increase expense without adding value On the other hand the term electronic

commerce is used to describe a new on-line approach to perform traditional

functions such as payment and funds transfer order entry and processing invoicing

inventory management cargo tracking electronic catalogue and point-of-sale data

gathering More recently companies have realised that the advertising marketing

and customer support functions are also part of electronic commerce application

domain These business functions acts as initiators to the entire order management

cycle that incorporates the more established notions of electronic commerce In

short what we are witnessing is the use of the term electronic commerce as an

umbrella concept to integrate a wide range of new and old applications

Despite the changes taking place businesses have three goals stay competitive

improve productivity and deliver quality service These goals are the guiding boys for

firms plotting their course in the turbulent waters of electronic commerce There are

other factors that companies need to keep in mind First most companies have

already made enormous information technology investments to automate their key

internal processes such as purchasing invoicing and other similar functions So

some aspects of the technological infrastructure for electronic commerce are already

in place The challenge now become How to effectively leverage this investment

Second prices for computer hardware and network equipment continue to fall

marking information technology an appealing investment for many businesses

especially when itrsquos used for high-impact applications such as linking their distributed

operations However investment without a clear idea of the electronic commerce

architecture being built would be akin to driving with blinders on As a result

companies that have decided that electronic commerce applications represent one

of the best strategic investment they can make must first exert some effort to

understand the technology underlying electronic commerce applications

At first glance it appears that messaging based technologies such as EDI and Male-

Enabled applications combined with database and information management service

form the technical foundation for effective electronic commerce solutions No single

one of these technologies can deliver the full potential of electronic commerce

however What we require is an integrated architecture the likes of which has never

been seen before This integrated architecture is emerging in the form of the World

Wide Web (WWW) As electronic commerce becomes more mature we are

beginning to see sophisticated applications being developed on WWW Technically

and commercially the WWW client-server model seems poised to become a

dominant technology

Electronic Data Interchange (EDI) Electronic Funds Transfer (EFT)

Information Sharing

Collaborative Work

Corporate

Digital

Library

Electronic Commerce

Marketing Advertising

Sales Customer Support

Electronic

Publishing

E-mail Fax

Electronic Messaging

Electronic Document Interchange

Chapter 3

Architectural framework for Electronic Commerce

The software framework necessary for building electronic commerce applications is

little understood in existing literature In general a framework is intended to define

and create tools that integrate the information found in todayrsquos closed systems and

allow the development of e-commerce applications It is important to understand that

the aim of the architectural framework itself is not to build new database management

systems data repository computer languages software agent-based transaction

monitors or communication protocols Rather the architecture should focus on

synthesizing the diverse resources already in place in corporations to facilitate the

integration of data and software for better applications

We propound that the electronic commerce application architecture consist of six

layers of functionality or services

1) Application

2) Brokerage services data or transaction management

3) Interface and support layers

4) Secure messaging and electronic document interchange

5) Middleware and structured document interchange

6) Network infrastructure and basic communication services

Applications Services

Customer-to-Business Business-to-Business Intra-organisational

Brokerage and data management

Order processing-mail order houses Payment scheme-electronic cash Clearinghouse or virtual mall

Interface layer

Interactive catalogue Directory support function Software agents

Secure messaging

Secure Hypertext Transfer Protocol Encrypted e-mail EDI Remote programming (RPC)

Middleware services

Structure documents (SGML HTML) Compound document (OLE OpenDoc)

Network infrastructure

Wireless-cellular radio PCS Wire line-POTS Coaxial Fibre Optics

These layers cooperate to provide a seamless transition between todayrsquos computing

resources and those of tomorrow by transparently integrating information access and

exchange within the context of the chosen application As seen in above figure

electronic commerce applications are based on several elegant technologies But

only when they are integrated do they provide uniquely powerful solutions

In the ensuing discussion of each of these layers we will not elaborate on the various

aspects of the network infrastructure that transports information

Electronic Commerce Application Services

The application services layer of e-commerce will be comprised of existing and

future applications built on innate architecture Three distinct classes of electronic

applications can be distinguished Customer-to-Business Business-to-Business

and Intra-organisation

Accounting

Finance and

Management

Manufacturing

and

Production

Engineering

and

Research

Procurement Distribution and Logistics

Advertising Sales Customer Service

Global Suppliers

Classic EDI

Customers

Customer Oriented

Electronic Commerce

Private

Commerce

Internal

Publishing

o Customer-to-Business Transaction

We call this category market place transaction In a market place transaction

customers learn about products differently through electronic publishing buy them

differently using electronic cash and secure payment systems and have them

delivered differently Also how customers allocate their loyalty may also be

different

In light of this organisation itself has to adapt to a world where the traditional

concepts of brand differentiation no longer hold-where ldquoQualityrdquo has a new meaning

where ldquoContentrdquo may not be equated to ldquoProductrdquo where ldquoDistributionrdquo may not

automatically mean ldquoPhysical Transportrdquo In this new environment brand equity can

rapidly evaporate forcing firms to develop new ways of doing business

o Business-to-Business Transaction

We call this category market-link transactions Here businesses government and

other organisations depend on computer-to-computer communication as a fast an

economical and a dependable way to conduct business transactions Small

companies are also beginning to see the benefits of adopting the same methods

Business-to-business transactions include the use of EDI and Electronic mail for

purchasing goods and services buying information and consulting services

submitting request for proposals and receive proposals

For example the current accounts payable process occurs through the exchange

of paper documents Each year the trading partners exchange millions of invoices

checks purchase orders financial reports and other transactions Most of the

documents are in electronic form at their point of origin but are printed and key-

entered at the point of receipt The current manual process of printing mailing and

rekeying is costly time consuming and error-prone Given this situation and faced

with the need to reduce costs small businesses are looking towards electronic

commerce as possible saviour

o Intra-organisational transaction

We call this category market-driven transactions A company becomes market

driven by dispersing throughout the firm information about its customers and

competitors by spreading strategic and tactical decision making so that all units can

participate and by continuously monitoring their customer commitment by making

improve customer satisfaction an ongoing objective To maintain the relationships

that are critical to delivering superior customer value management must play close

attention to service both before and after sales

Information Brokerage and Management

The information brokerage and management layer provide service integration

through the notion of information brokerages the development of which is

necessitated by the increasing information resource fragmentation We use the

notion of information brokerage to represent an intermediary who provides service

integration between customers and information providers given some constraint

such as a low price fast service or profit maximisation for a client

Information brokers for example are rapidly becoming necessary in dealing with the

voluminous amounts of information on the networks As online database migrate to

consumer information utilities consumers and information professionals will have

to keep up the knowledge and ownership of all these systems Whorsquos got what

How do you use it What do they charge Most professionals have enough trouble

keeping track of files of interest on one or two database services With all the

complexity associated with large number of online database and service bureaus

itrsquos impossible to expect humans to do the searching It will have to be software

programs-information brokers or software agents to use the most popular term-Act

on searcherrsquos behalf Information brokerage does more than just searching

Interface and Support Services

The third layer interface and support services will provide interfaces for electronic

commerce applications such as interactive catalogues and will support directory

services-functions necessary for information search and access These two

concepts are very different Interactive catalogues are the customized interface to

consumer applications such as home shopping An interactive catalogue is an

extension of the paper-based catalogue and incorporates additional features such

as sophisticated graphics and video to make the advertising more attractive

Directories on the other hand operate behind the scenes and attempt to organise

the enormous amount of information and transactions generated to facilitate

electronic commerce Directory services database make data from any server

appear as a local file A classic example of a directory is the telephone White Pages

which allows us to locate people and telephone numbers In the case of electronic

commerce directories would play an important role in information management

functions For instance take the case of buying an airline ticket with several

stopovers with a caveat that the time between layovers be minimized This search

would require several queries to various online directories to find empty seats on

various airlines and then the availability of seats would be coordinated with the

amount of time spent in the airport terminals

Secure Messaging and Structured Document Interchange

Services

The importance of the fourth layer secure messaging is clear Everyone in

business knows that electronic messaging is a critical business issue Consider a

familiar business scenario you hand over an urgent fax on Monday and find out on

Tuesday that itrsquos still sitting on your fax operatorrsquos desk What happened The line

was busy and he thought he would try again later Or the number was wrong but

he forgot to let you know Or you are in London and you need to send a spreadsheet

that details a marketing plan for a product introduction strategy to co-worker in New

York This must be done today not tomorrow when the courier service would

deliver There is a solution to these common and frustrating problems Itrsquos called

integrated messaging a group of computer services that through the use of a

network send receive and combine messages faxes and large data file Some

better known examples are electronic mail enhance fax and electronic data

interchange

Broadly defined messaging is the software that sits between the network

infrastructure and the clients or electronic commerce applications masking the

peculiarities of the environment Others define messaging as a framework for the

total implementation of portable applications divorcing you from the architectural

primitives of your system In general messaging products are not applications that

solve problems they are more enablers of the application that solve problems

Messaging services offer solution for communicating non-formatted (unstructured)

data such as purchase orders shipping notices and invoices Unstructured

messaging consist of fax e-mail and form based system like Lotus Notes

Structured documents messaging consist of the automated interchange of

standardized and approved messages between computer applications via

telecommunication lines Examples of structured document messaging include EDI

Messaging is gaining momentum in electronic commerce and seems to have many

advantages It supports both synchronous (immediate) and asynchronous (delayed)

message delivery and processing With asynchronous when a message is sent

work continues (software doesnrsquot wait for a response) This allows the transfer of

messages through store-and-forward methods

The main disadvantages of messaging are the new types of applications it enables-

which appear to be more complex especially to traditional programmers-and the

jungle of standards it involves Because of the lack of standards there is often no

interoperability between messaging vendors leading to islands of messaging Also

security privacy and confidentiality through data encryption and authentication

techniques are important issues that need to be resolved for ensuring the legality of

the message-based transactions themselves

Middleware Services

Middleware is a relatively new concept that emerged only recently like so many

other innovations it came into being out of necessity Users in the 1970s when

vendors delivered homogenous systems that worked didnrsquot have a need for

middleware When conditions changed-along with the hardware and the software

the organisations couldnrsquot cope The tools were inadequate the backlog was

enormous and the pressure was overwhelming And the users were dissatisfied

Something was needed to solve all the interface translation transformation and

interpretation problems that were driving application developers crazy

With the growth of networks client-server technology and all other forms of

communicating betweenamong unlike platforms the problems of getting all the

pieces to work together grew from formidable to horrendous As the cry for

distributed computing spread users demanded interaction between dissimilar

systems networks that permitted shared resources and applications that could be

accessed by multiple software programs In simple terms middleware is the ultimate

mediator between diverse software programs that enables them talk to one another

Transparency

Transparency implies that users should be unaware that they are accessing multiple

systems Transparency is essential for dealing with higher-level issues than

physical media and interconnection that the underlying network infrastructure is in

charge of The ideal picture is one of a ldquoVirtualrdquo network a collection of work-group

departmental enterprise and enterprise LANs that appears to the end user or client

application to be a seamless and easily accessed whole

Transparency is accomplished using middleware that facilitates a distributed

computing environment This gives users and applications transparent access to

data computation and other resources across collections of multivendor

heterogeneous systems The strategic architectures of every major system vendor

are now based on some form of middleware The key to realising the theoretical

benefit of such an architecture is transparency Users need not spend their time

trying to understand where something is Nor should application developers have to

code into their applications the exact locations of resources over the network The

goal is for the applications to send a request to the middleware layer which then

satisfies the request anyway it can using remote information

Transaction Security and Management

Support for transaction processing (TP) is fundamental to success in the electronic

commerce market Security and management are essential to all layers in the

electronic commerce model Transaction integrity must be given for businesses that

cannot afford any loss or inconsistency in data For electronic commerce

middleware provides the qualities expected in the standard TP System the so-

called ACID properties (Atomicity Consistency Isolation and Durability)

World Wide Web (WWW) As the Architecture

Electronic commerce depends on the unspoken assumption that computers

cooperate efficiently for seamless information sharing Unfortunately this

assumption of interoperability has been supported by the realities of practical

computing Computing is still a world made up of many technical directions product

implementations and competing vendors This diversity while good for innovation

causes problem as the e-commerce applications try to impose a certain discipline

on the proliferating computers and networks It is ironic that real effect of computing

is all too often then prevention of data sharing due to incompatibilities-architectures

data formats and communication protocols

What does the Web Encompass

The web has become an umbrella for wide range of concepts and technologies that

differ markedly in purpose and scope These include the global hypertext publishing

concept the universal reader concept and the client-server concept

The global hypertext publishing concept promotes the idea of a seamless

information world in which all on-line information can be accessed and retrieved in

a consistent and simple way To access information in this seamless world we will

need the ability to address many types of data-text files images sound files and

animation sequences

The universal readership concept promotes the idea that unlike the segmented

applications of the past we can use one application-a universal (or common) user

interface-to read a variety of documents This concept implies that once information

is published it is accessible from any type of computer in any country and that any

(authorised) person merely needs to use one simple program to access it This is

accomplished in the web by using a core browser or application that is augmented

by supporting applications The core browser implements only minimal functionality

and attempts to offload more specialised work onto the supporting applications

The client server concept allows the web to grow easily without any centralised

control Anyone can publish information and anyone (as long as he or she is

authorized) can read and download it Publishing information requires a server

program and reading data requires a client browser All the clients and all the

servers are connected to one another by the Internet The various standard

protocols allows all clients to communicate with all servers In practice the web

hangs on a number of essential concepts including the following

The addressing scheme known as uniform resource locator (URL) makes the

hyper media world possible despite many different protocols

A network protocol known as hypertext transfer protocol (HTTP) used by client

browsers and servers offers performance and features not otherwise available

A mark-up language (HTML) which every web client is required to understand

is used for the representation of hypertext documents containing text list boxes

and graphics information across the net

Chapter 4

Technology behind the Web

Information providers (or publishers) run programs (called servers) from which the

browsers (clients) can obtain information These programs can either be Web servers

that understand the hypertext transfer protocol (HTTP) ldquoGatewayrdquo programs that

convert an existing information format to hypertext or a non-HTTP server that Web

browser can access-anonymous FTP or Gopher servers

Web servers are composed of two major parts the hypertext transfer protocol for

transmitting documents between servers and clients and the hypertext mark-up

language (HTML) format for documents The link between HTML files and the HTTP

servers is provided by the uniform resource locators (URLs)

Uniform Resource Locator (URL)

The documents that the browsers display are hypertext that contains pointers to other

documents The browser let you deal with the pointers in a transparent way-select

the pointer and you are presented with the text to which it points This pointer is

implemented using a concept that is central to Web browsers Uniform Resource

Locators (URLs) One way to think about URLs is to use the libraries and location on

a shelf as a metaphor A URL for a digital library wold be a unique call number that

provides the exact location of every book in the world including the country city

street and library shelf location

In practice URLs are the string used as addresses of objects (documents images)

on the web Think of them as analogous to your e-mail address Just as your address

is unique and may be used by any other Internet user to send you mail without

knowing exactly where you are a URL marks the unique location on the Internet

where a file or service can be found

URLs follow a fairly consistent pattern The first part describes the type of resource

the second part gives the name of the server housing the resource and the third part

gives full filename of the resource URLs are universal in that they provide access to

a wide range of network services which required separate applications in the past

For a new network protocol one can easily form an address as the set of parameters

necessary to retrieve the object If these parameters are encoded into a concise

string with a prefix to identify the protocols and encoding one has a new URL

scheme Take a look at the URL format below

FTP ftpserveraddresscompletefilename

Gopher gopherserveraddressportdirectoryfilename

TELNET telnetserveraddressport

HTTP httpserveraddressporthomepagehtml

New newsmiscstocksinvest

These are URLs for internet news articles and news groups (the NNTP protocol) and

for HTTP archives for TELNET destinations e-mail addresses and so on The same

can be done for names of objects in a given name space

For example the URL of the main page for the web project happens to be

httpwebw3orghypertextwebTheProjecthtml

The prefix ldquohttprdquo in the preceding example indicates the address space and defines

the interpretation of the rest of the string The HTTP protocol is to be used so the

string contains the address of the server to be contacted and a substring to be passed

to the server As noted earlier different protocols use different syntaxes but they do

have a small amount in common For example the common URL syntax reserves

the solidus () as a way of representing a hierarchical space the pound label () as

a way of pointing inside the document and question mark () as a separator between

the address of an object and a query operation applied to it Hierarchical spaces are

useful for hypertext where one ldquoworkrdquo may be split up into many interlinked

documents The allows relative names to exploit the hierarchical structure and

allows links to be made within the work independent of the higher parts of the URL

such as the server name

URLs are central to the web architecture The fact that it is easy to address an object

anywhere on the internet is essential for the system to scale and for the information

space to be independent of the network and server topology

Chapter 5

Network Security and Firewalls

The ability to conduct business on a public network has strong attraction-and the

potential for big savings Security and confidentiality are essential however before

businesses can conduct financial transactions over the internet and a lack of

widespread security measures remains at this time At present credit card numbers

financial records and other important information are not encrypted and can be

intercepted by any savvy Internet hacker

The discussion of security concern in electronic commerce can be divided into two

broad types

1 Client-Server Security uses various authorization methods to make sure that only

valid users and programs have access to information resources such as

databases Access control mechanisms must be set up to ensure that properly

authenticated users are allowed access only to those resources that they are

entitled to use Such mechanisms include password protection encrypted smart

cards biometrics and firewalls

2 Data and transaction security ensures the privacy and confidentiality in electronic

messages and data packets including the authentication of remote users in

network transactions for activities such as on-line payment The goal is to defeat

any attempt to assume another identity while involved with electronic mail or other

forms of data communication Preventive measures include data encryption using

various cryptographic methods

Data and Message Security

The lack of data and message security on the Internet has become a profile problem

due to increasing number of merchants trying to spur commerce on the global

network For instance credit card numbers in their plain text form create a risk when

transmitted across the Internet where the possibility of the number falling into the

wrong hands is relatively high Would you be willing to type in your credit card number

knowing the risk Even worse would you expose your customers to that risk Just

the thought of ldquosnifferrdquo programs that collect credit card numbers en masse is enough

to keep merchants away from on-line shopping given the possible lawsuits and other

liability issues In short the lack of business transaction security is widely

acknowledged as a major impediment to widespread e-commerce

Encrypted Documents and Electronic Mail

E-mail users who desire confidentiality and sender authentication are using

encryption Encryption is simply intended to keep personal thoughts personal Some

users are already using Pretty Good Privacy (PGP) others are starting to use Privacy

Enhanced Mail (PEM)

E-mail is typically encrypted for the reason that all network correspondence is open

for eavesdropping Internet e-mail is obviously far less secure then the postal system

where envelopes protect correspondence from casual snooping A glance at the

header area of any e-mail message by contrast will show that it has passed through

a number of nodes on its way to you Every one of these nodes present the

opportunity for snooping

Chapter 6

Electronic Commerce Companies

Chapter 7

Pictorial Representation E-Buying Methodology

Buying Procedure on on-line shopping website Flipkart

Step 1 -

Go to the link of the website wwwflipkartcom

Step 2 -

Select the desired product category you want to buy

Step 3 -

Choose the product you want to buy

Step 4 -

On the productrsquos page click on Add to WISHLIST to add more products to your

recent shopping

Step 5 ndash Either Log-In or Sign-Up to add more products to you Wish List

Step 6 -

To buy click on BUY NOW button on the productrsquos page Then click on PLACE

ORDER button to place your order

Step 7 -Now it will ask whether you are existing customer or a new

customer Choose desired option and then click on CONTINUE

Step 8 -

You are required to fill up all the details asked in the form then click on SAVE

AND CONITNUE

Step 9 -

Click on CONTINUE button by confirming your purchase

Step 10 -

Select the desired PAYMENT METHOD according to your facility

Step 11 -

Fill up the details and click on PAY

Buying Procedure on on-line shopping website Yepme

Step 1 -

Step 2 -

Step 3 -

Step 4 -

Step 5 -

Step 6 -

Step 7 -

Step 8 -

Step 9 -

Chapter 8

Conclusion

E-Commerce is growing tremendously A lot of companies have joined between the period July and August Online retail is still a tiny spot in Indiarsquos retail market of about $500 billion a year but it is growing at a quick pace A study by retail consultancy Technopark predicts Indiarsquos e-tailing market will reach $32 billion by 2020 from $23 billion in 2014

Ethnic Indian clothes and casual work are favourite products but unusual products like pets-

too are being offered online With the huge growth that e-commerce has witnessed in recent

times analysed like Devyanshu Dutta says there is scope for more players to come in but

some also warn about the risks the space is fraught with as only a few chances of making

it big They also see consolidation in the sector going forward

BIBLIOGRAPHY

Frontiers of Electronic Commerce by Ravi Kalakota and Andrew B Whinston

Big E-Commerce deals stir up sector-Economic Times

wwwFlipkartcom

wwwYepmecom