greater chennai corporation limit north side covers up to athipattu minjur north west side cover up to avadi, patabhiram and thirunindravur area and then covers up to areas like poonamalle nazerathpet and nalur from poonnamalle taulks .redhills karanodai. west side covers pallavaram taluks region mangadu and kundrathur. then sriperumbudur taluk region up to varadharajapuram .east side covers uthandi and kunathur and south side covers up to chengalpattu taluka regions like mannivakkam kandigai, mambakkam and vandalur. only region which comes under chennai city limits. 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 taluka regions.