Section 15(3) in The Rajasthan Colonisation (Allotment and Sale of Government Land in the Indira Gandhi Canal Colony Area) Rules, 1975
(3)The area and scale of allotment referred to in these Rules are with reference to command land. Where any area of land held or allotted is uncommand land, 2 bighas of such land shall be reckoned as one bigha of command land for purposes of computation of area [or barani land in the Colony area] [Inserted by Notification No. F. 4(5) Revenue/Col./82, dated 08.11.1982 - Rajasthan Government Gazette, Part IV-C, dated 18.11.1982, page 512.].
