Mahabirganj is a village with a population of 225 lies in north east corner of Parsathua market in Rohtas district in the Indian state of Bihar.

This village is situated around 0.5 km north of National Highway 30.

There is no water supply and the village can be reached by bus or minibus.

Political Parties members come here in time of election after that no one is to help these villages.

The main lifeline are means of income is cultivation and animal husbandry.