Kunwar Singh belonged to the Shahabad (Arrah) region of Bihar. He was a prominent figure in the Indian Rebellion of 1857, and is considered to be one of the most important leaders of the rebellion in Bihar. He was born in Jagdishpur village in Arrah district in 1777. He was a member of the Bhumihar caste, and his family was one of the most powerful landowning families in the region.
Kunwar Singh was a brave and charismatic leader, and he quickly gained a large following among the people of Shahabad. He led a number of successful attacks against the British, and he was instrumental in the capture of several important British strongholds. He was eventually defeated by the British, but he remains a revered figure in Indian history.
The other options are incorrect. Chotanagpur is a region in eastern India that is now part of the states of Jharkhand, Chhattisgarh, and Odisha. Magadh is a region in central India that is now part of the state of Bihar. Mithila is a region in northern India that is now part of the states of Bihar, Jharkhand, and Uttar Pradesh.