Section 6(1)(k) in The West Bengal Premises Tenancy Act, 1997
(k)where the landlord is a member of the Armed Forces of the Union of India and requires it for occupation of his family and produces a certificate of the prescribed authority referred to in section 7 of the Indian Soldiers (Litigation) Act, 1925, that he is serving under special conditions within the meaning of section 3 of that Act or is posted in a non-family area;