Greater Chennai Corporation
The Chennai city Area Consists of 1,189 km2(459 sq mi) and has population of 8,917,749. Since 1974, an area encompassing 1189 km2around the city has been designated as the Chennai Metropolitan Area (CMA) and the CMDA has been designated as the authority to plan the growth of the city and the area around it.
Chennai city(Madras), the capital City of Tamil Nadu is the fourth largest Metropolitan City in India. The Chennai Metropolitan Area (CMA) comprises the city of Chennai, 16 Municipalities, 20 Town Panchayats and 214 Village Panchayats in 10 Panchayat Unions. The extent of CMA is 1189 km2. The CMA falls in three Districts of the Tamil Nadu State viz. Chennai District, part of Thiruvallur District from Tiruvettriyur to ponnamalle Taulk, and part of Kancheepuram District Pallavaram to Vandalur.
Greater Chennai Corporation Limit North Side Covers up to Athipattu Minjur east side covers up to areas like Nazerathpet and nalur From Poonnamalle Taulks.Redhills Karanodai.West side Covers sriperumpadur taulk region Varadharajapuram.east side Covers Uthandi and kanathur and South side covers up to Chengalpattu taulk regions like Mannivakkam kandigai, mambakkam and Vandalur. Only region which Comes Under Chennai city will be given CMDA approval for lands and building construction.while DTCP approval will be given to Towns outside Chennai like Kanchipuram region places like Urapakkam, Guduvancheri, Potheri and other Chengalpattu taulk regions.
Places nearby Chennai city call themselves Chennai will not have Chennai pin code and CMDA approvals. Thus proves those regions were Outside Chennai. Chennai city pin code starts with Chennai city 600001 to 600130. Rest pin codes were not considered as Chennai like Starts with 601, 602 or 603 etc.
List of place are not Part of Chennai city
These places belong to Kanchipuram District and Chengalpattu taulka regions and will not have any connection to Chennai other than situated nearby Chennai city. These census town were developed rapidly because of their proximity to Chennai city.