12.82607 80.0412 50 Asia/Kolkata Tamil Nadu Grand Southern Trunk Road Grand Southern Trunk Road 603203 Tamil Nadu IN Kattangulathur India 12.82610 80.04120 trunk 0.003 1 Kattangulathur IN Tamil Nadu Tamil Nadu Tamil Nadu India 603203 Grand Southern Trunk Road 12.82610 80.04120 trunk 0.003 1 CHENNAI-TILOZ KATTTHUR-TILOZ 4856343050337 6 administrative Chengalpattu boundary 55 administrative Chengalpattu district boundary 66 administrative Chengalpattu boundary