13.11859 80.07962 30 Asia/Kolkata Tamil Nadu Gopalapuram Main Road Gopalapuram Main Road 600072 Tamil Nadu IN Venkatapuram India 13.11860 80.07960 tertiary 0.002 1 Venkatapuram IN Tamil Nadu Tamil Nadu Tamil Nadu India 600072 Gopalapuram Main Road 13.11860 80.07960 tertiary 0.002 1 AVADI-DXXDK PATTABIRAM-DXXDK 4856347891548 6 administrative Poonamallee boundary 66 administrative Poonamallee boundary Gopalapuram Main Road Chennai Tiruvallur High Road 13.11894 80.079625 0.038