Section 55B(7) in U.P. Zamindari Abolition and Land Reforms Rules, 1952
(7)Interim interest shall be paid in half-yearly instalments-the first instalment falling due on or after 1st January and the second instalment falling due on or after 1st July every year, except the instalment of interim interest from the date of vesting up to June 30, 1955 which shall be deemed to have become payable from and after 1st July, 1955.