Pincode 631402 have been assigned to 6 locations.

Kilacheri , Perambakkam , Sriperumbudur
Kondancheri , Perambakkam ,
Kuvam , Perambakkam , Sriperumbudur
Mappedu , Perambakkam , Sriperumbudur
Narasingapuram , Perambakkam , Sriperumbudur
Perambakkam , Tiruvallur , Sriperumbudur