Section 54A(4) in The Jaipur Development Authority Act, 1982
(4)Where any land has, prior to the first day of August, 1987, vested in the State Government or its possession has been taken in accordance with the provisions of this Act, as it stood before the first day of August, 1987, such vesting or possession of land shall not be liable to be challenged on the ground that no amount of compensation was tendered and paid in accordance with subsection (3-A) of section 17 of the Land Acquisition Act, subject, however, that such amount shall be tendered and paid within a period of six months from the first day of August, 1987.