Section 100A(2)(f) in The U.P. Water Supply and Sewerage Act, 1975
(f)employees governed by the Uttar Pradesh Palika Jal Kal and Jal Sansthan Abhiyantran (Kendriayit) Sewa Niyamawali, 1986 or working on deputation in Jal Sansthan shall continue to be members of their parent service and shall revert to the said service;