Rohtas district was created in 1972, when the former Shahabad district was divided in two. Rohtas district is divided into 19 community development blocks, which are grouped together into 3 sub-divisions based at Sasaram, Bikramganj, and Dehri
There are 38 Districts in Bihar
Araria । Arwal । Aurangabad । Banka। Begusarai। Bhagalpur । Bhojpur । Buxar । Darbhanga । East Champaran । Gaya । Gopalganj । Jamui । Jehanabad । Kaimur । Katihar । Khagaria । Kishanganj । Lakhisarai । Madhepura । Madhubani । Munger । Muzaffarpur । Nalanda । Nawada । Patna । Purnea । Rohtas । Saharsa । Samastipur । Saran । Sheikhpura । Sheohar । Sitamarhi । Siwan । Supaul । Vaishali । West Champaran