Ranka is a Sub-District (Tehsil/Block/Mandal) in the Garhwa District of Jharkhand. As par Census 2011 information the sub-district code of Ranka is 02511. There are about 19 sub-districts in Garhwa and Ranka is one of them. Bardiha, Bhandaria, Bhawnathpur, Bishunpura, Chinia, Danda, Dandai, Dhurki, Garhwa, Kandi, Ketar, Kharaundhi, Majhiaon, Meral, Nagaruntari, Ramkanda, Ramna, Sagma etc. are other sub-districts in Garhwa.There are about 81 villages in Ranka sub-district, which you can browse from villages list.