Defence Colony is a Sub-District (Tehsil/Block/Mandal) in the South Delhi District of Delhi. As par Census 2011 information the sub-district code of Defence Colony is 00455. There are about 3 sub-districts in South Delhi and Defence Colony is one of them. Hauz Khas, Kalkaji etc. are other sub-districts in South Delhi.There are about 1 villages in Defence Colony sub-district, which you can browse from villages list.