Tambaram Sholinganallur Alandur Ambattur Madhavaram Chennai Chengalpattu Sriperumbudur Poonamallee Ponneri Gummidipoondi Uthukkottai Thiruvallur Chennai Chengalpattu Tambaram Sriperumbudur Poonamallee Ambattur Ponneri Gummidipoondi Uthukkottai Thiruvallur Outer London Greenwich Lewisham Tower Hamlets Hackney Camden Westminster Kensington and Chelsea Hammersmith and Fulham Wandsworth Lambeth Southwark Islington Newham Croydon Redbridge Haringey Hillingdon Harrow Barnet Brent Ealing Hounslow Richmond Upon Thames Kingston Upon Thames Merton Sutton Bexley Bromley Havering Barking & Dagenham Waltham Forest Enfield Inner London GREATER LONDON GREATER CHENNAI 2001 2011 30 km Population, m 1.00-2.50 2.50-5.00 0.75-1.00 0.25-0.50 0.50-0.75 0.00-0.25 A tale of two cities Sources: GLA datastore, Chennai to come