Kairo is a Sub-District (Tehsil/Block/Mandal) in the Lohardaga District of Jharkhand. As par Census 2011 information the sub-district code of Kairo is 02600. There are about 7 sub-districts in Lohardaga and Kairo is one of them. Bhandra, Kisko, Kuru, Lohardaga, Peshrar, Senha etc. are other sub-districts in Lohardaga.There are about 26 villages in Kairo sub-district, which you can browse from villages list.