Ramna is a Sub-District (Tehsil/Block/Mandal) in the Garhwa District of Jharkhand. As par Census 2011 information the sub-district code of Ramna is 02501. There are about 19 sub-districts in Garhwa and Ramna is one of them. Bardiha, Bhandaria, Bhawnathpur, Bishunpura, Chinia, Danda, Dandai, Dhurki, Garhwa, Kandi, Ketar, Kharaundhi, Majhiaon, Meral, Nagaruntari, Ramkanda, Ranka, Sagma etc. are other sub-districts in Garhwa.There are about 39 villages in Ramna sub-district, which you can browse from villages list.