The city of Chennai in Tamil Nadu, India, is managed by the Corporation of Chennai. Established as Madras Corporation in 1688, it is the oldest municipal body in India. It is headed by a mayor, who presides over 200 councillors each of whom represents a ward. The current mayor of Chennai was elected on 4 March 2022.
Prior to its expansion in late 2011, the city occupied an area of ; its merger with 42 local bodies at that time more than doubled its extent, resulting in a combined area of . Chennai Corporation absorbed seven municipalities, three town panchayats and 13 panchayat unions in Tiruvallur district and two municipalities, five town panchayats and 12 panchayat unions in Kanchipuram district. A total of nine municipalities merged into the city: Alandur, Ambattur, Kattivakkam, Madhavaram, Maduravoyal, Manali, Tiruvottiyur, Ullagaram-Puzhuthivakkam and Valasaravakkam. A total of eight town panchayats merged into the city: Chinnasekkadu, Puzhal, Porur, Nandambakkam, Meenambakkam, Perungudi, Pallikaranai, Sholinganallur. A total of twenty-six village panchayats merged into the city: Edayanchavadi, Sadayankuppam, Kadapakkam, Theeyampakkam, Mathur, Vadaperumbakkam, Surapet, Kathirvedu, Puthagaram, Nolambur, Karambakkam, Nerkundram, Ramapuram, Mugalivakkam, Manapakkam, Kottivakkam, Palavakkam, Neelankarai, Injambakkam, Karapakkam, Okkiyam-Thuraipakkam, Madipakkam, Madipakkam-B / Madipakkam-II (only revenue and disaster management merged with Zone-14 Puzhuthivakkam of the city, local body administration is under Kovilambakkam rural village panchayat), Jaladampet, Semmencherry, and Uthandi.
The expanded city contains 4.41 million voters and was re-organised into 15 zones consisting of 200 wards. The newly annexed areas were divided into 93 wards, and the remaining 107 wards were created out of the original 155 within the old city limits. , the new wards are yet to be named. Out of the 200 wards, 26 were reserved for scheduled castes and scheduled tribes and 58 were reserved for women.