Pincode 603101 have been assigned to 5 locations.

Athur-chengalpattu , Chengalpattu , Chengalpattu
Palur , Athur-chengalpattu , Chengalpattu
Reddipalayam , Athur-chengalpattu ,
Thimmavaram , Athur-chengalpattu , Chengalpattu
Villiambakkam , Athur-chengalpattu , Chengalpattu