CMDA Approved Plots In sale CMDA Approved Plots In sale, Buy Approved Plots with CHENNAI Metropolitan Approved. CMDA Land With EMI Option. BUY Approved PLOts Houses From Only CMDA Approved Property FROm AdsKHan Property Portal Chennai and Surrounding Area. Chennai Metropolitan Area (CMDA) Chennai, the capital City of Tamil Nadu is the fourth largest Metropolitan City in India. The Chennai Metropolitan Area (CMDA) comprises the city of Chennai, 8 Municipalities, 11 Town Panchayats and 179 Village Panchayats in 10 Panchayat Unions. The extent of CMA is 1189 Sq.km. The setting of Chennai is presented in the Figure.