Hauz Khas is a Sub-District (Tehsil/Block/Mandal) in the South Delhi District of Delhi. As par Census 2011 information the sub-district code of Hauz Khas is 00454. There are about 3 sub-districts in South Delhi and Hauz Khas is one of them. Defence Colony, Kalkaji etc. are other sub-districts in South Delhi.There are about 18 villages in Hauz Khas sub-district, which you can browse from villages list.