12.85684 80.05237 36 Asia/Kolkata Tamil Nadu 3 Karthik Nagar Extension Karthik Nagar Extension 603202 Tamil Nadu IN Guduvanchery India 12.85684 80.05237 0.000 1 Guduvanchery IN Tamil Nadu Tamil Nadu Tamil Nadu India 603202 3 Karthik Nagar Extension 12.85684 80.05237 0.000 1 CHENNAI-TBFQO MADAAM-TBFQO 4856342923290 6 administrative Chengalpattu boundary 55 administrative Chengalpattu district boundary 66 administrative Chengalpattu boundary Erikarai road Karthik Nagar Extension 12.85691 80.052395 0.008 Guduvanchery Tamil Nadu 603202 3 Karthik Nagar Extension 12.85684 80.05237 Vetrivel Nagar Tamil Nadu 603202 3 Karthik Nagar Extension 12.85684 80.05237