Section 21(4) in The Right To Fair Compensation And Transparency In Land Acquisition, Rehabilitation and Resettlement Act, 2013
(4)The Collector shall also serve notice to the same effect on the occupier, if any, of such land and on all such persons known or believed to be interested therein, be entitled to act for persons so interested, as reside or have agents authorised to receive service on their behalf, within the revenue district in which the land is situated.
