Section 122D(1) in The U.P. Zamindari Abolition and Land Reforms Act, 1950
(1)Where any land, referred to in sub-section (2) of Section 122-C, is allotted to any person for the purposes of building of house and-any person other than the allottee is in occupation of such land in contravention of the provisions of this Act, the Assistant Collector may, of his own motion, and shall, on the application of the allottee, put the allottee in possession of such land and may, for that purpose, use or cause to be used such force, as he considers necessary.