Rohtas district

Rohtas district is one of the thirty-seven of ,. is the administrative headquarters of this district. is another city with population over 100,000. There are also cities in the south of this district called and  in northern Rohtas.

The Rohtas district is a part of, and it has an area of 3850 km&sup2; , a population of 2,448,762 ( census), and a population density of 636 persons per km&sup2;.

is a great village of where the eminent  family of landowners come from.

The administrative headquarters of the district is Sasaram, a place of historical importance. Another important symbol of national pride is Sone Bridge, built over the river. There are two parallel bridges, one for road and another for railway. The area is also known for its rich language,.

Industry
Until, Dalmianagar was one of the major industrial cities in india. It had sugar, vegetable oil, cement, paper, and chemical factories (Rohtas Industries) but now they are closed. Now, there are few cement factories. , extortion and interference from the local mafia led to the downfall of this place. Recently it got bad names because of increasing kidnapping cases, which has flourished because of nexus between local politicians, criminals and the police. This incident has left many local businessmen moving out of the district. The basis for the economy, as in almost all of Bihar, is agriculture. Some major crops include, , and s.

Dehri On Sone is also famous for coal depot. This market brings customers from all over of North India to do coal trading.

There is one generation unit which generates 6.6 s of electricity. The language in this district and the neighboring district of is.

Transport
This city is well connected with railway and road. Dehri On Sone and Sasaram has big railway station with almost all the major train stops there. For the details of rail and its schedule, see [www.indianrail.gov.in the official website]. This place is well connected with the road as Grant Trunk Road passes through the heart of both of Dehri and Sasaram.