ARRAH, a town of British India, headquarters of Shahabad district, in the Patna division of Bengal, situated on a navigable canal connecting the river Sone with the Ganges.
(2) A river of the Shahabad district of Bengal, which forms the drainage channel between the Arrah canal and the Sone canals system, and finally falls into the Gangi nadi.
It divides the province into two almost equal portions; north of the river lie the districts of Saran, Champaran, Tirhoot, Purnea, and part of Monghyr and Bhagalpur, and south of it are Shahabad, Patna, Gaya, the Santal parganas, and the rest of Monghyr and Bhagalpur.
The province of Behar corresponds to the ancient kingdom of Magadha, which comprised the country now included in the districts rof Patna, Gaya and Shahabad, south of the Ganges.
The province of Bengal, therefore, now consists of the thirty-three British districts of Burdwan, Birbhum, Bankura, Midnapore, Hugh, Howrah, Twenty-four Parganas, Calcutta, Nadia, Murshidabad, Jessore, Khulna, Patna, Gaya, Shahabad, Saran, Champaran, Muzaffarpur, Darbhanga, Monghyr, Bhagalpur, Purnea, Santal Parganas, Cuttack, Balasore, Angul and Khondmals, Puri, Hazaribagh, Ranchi, Palamau, Manbhum, Singhbum and Sambalpur, and the native states of Sikkim and the tributary states of Orissa and Chota Nagpur.