A landlord may apply to the Controller for an order directing the tenant to put the landlord in possession- (a) in the case of a 1 [residential and non-residential building], if- (i) he requires it for his own occupation: Provided that he is not occupying another 2 [residential and non-residential building] owned by him in the urban area concerned: Provided further that he has not vacated such a building without sufficient cause within five years of the filing of the application, in the said urban area; or (ii) it was let to the tenant for use as a residence by reason of his being in service or employment of the landlord, and the tenant has ceased, whether before or after commencement of this Act, to be in such service or employment: Provided that where the tenant is a workman who has been discharged or dismissed by the landlord from his service or employment in contravention of the provisions of the Industrial Disputes Act, 1947 (14 of 947), he shall not be liable to be evicted until the competent authority under that Act confirms the order of discharge or dismissal made against him by the landlord; (iii) the landlord is a member of the Armed Forces of the Union of India and requires it for the occupation of his family and if he produces a certificate of the prescribed authority referred to in section 7 of the Indian Soldiers (Litigation) Act, 1925, (4 of 1925) that he is serving under special conditions within the meaning of section 3 of that Act or is posted in a non-family station.