Section 3(1) in The Bihar And West Bengal (Transfer Of Territories) Act, 1956
(1)As from the appointed day, there shall be added to the State of West Bengal the territories which on the 1st day of March, 1956, were comprised in--(a)that portion of Kishanganj sub-division of Purnea district which lies to the east of the boundary line demarcated in accordance with the provisions of sub-section (2) by an authority appointed in this behalf by the Central Government and that portion of Gopalpur thana of the said district which lies to the east or north, as the case may be, of the said boundary line; and(b)Purulia sub-division of Manbhum district, excluding Chas thana, Chandil thana and Patamda police station of Barabhum thana; and the said territories shall thereupon cease to form part of the State of Bihar.
