Giridih is a Sub-District (Tehsil/Block/Mandal) in the Giridih District of Jharkhand. As par Census 2011 information the sub-district code of Giridih is 02539. There are about 13 sub-districts in Giridih and Giridih is one of them. Bagodar, Bengabad, Birni, Deori, Dhanwar, Dumri, Gande, Gawan, Jamua, Pirtanr, Sariya, Tisri etc. are other sub-districts in Giridih.There are about 216 villages in Giridih sub-district, which you can browse from villages list.