Sirdala is a Sub-District (Tehsil/Block/Mandal) in the Nawada District of Bihar. As par Census 2011 information the sub-district code of Sirdala is 01523. There are about 14 sub-districts in Nawada and Sirdala is one of them. Akbarpur, Gobindpur, Hisua, Kashi Chak, Kawakol, Meskaur, Nardiganj, Narhat, Nawada, Pakribarawan, Rajauli, Roh, Warisaliganj etc. are other sub-districts in Nawada.There are about 87 villages in Sirdala sub-district, which you can browse from villages list.