Pincode 631604 have been assigned to 6 locations.

Echoor , Thenneri , Sriperumbudur
Kunnam , Thenneri , Sriperumbudur
Panruti , Thenneri , Sriperubudur
Sinnivakkam , Thenneri , Sriperumbudur
Thenneri , Kanchipuram , Sriperumbudur
Varanavasi , Thenneri , Sriperumbudur