Section 10(3)(c) in The Tamil Nadu Buildings (Lease and Rent Control) Act, 1960
(c)A landlord who is occupying only a part of a building, whether residential or non-residential, may, notwithstanding anything contained in clause (a), apply to the Controller for an order directing any tenant occupying the whole or any portion of the remaining part of the building to put the landlord in possession thereof, if he requires additional accommodation for residential purposes or for purposes of a business which he is carrying on, as the case may be.