Section 11(5) in Tamil Nadu Urban Land (Ceiling and Regulation) Act, 1978
(5)Where any vacant land is vested in the State Government under sub-section (3), the competent authority may, by notice in writing, order any person who may be in possession of it to surrender or deliver possession thereof to the State Government or to any person duly authorised by the State Government in this behalf within thirty days of the service of the notice.