Section 21(3) in The U.P. Right of Children to Free and Compulsory Education Rules, 2011
(3)For the purpose of maintaining the pupil-teacher ratio, no teacher posted in a school shall be made to serve in any other school or office or deployed for any non-educational purpose, other than the decennial population census, disaster relief duties or duties relating to elections to the local authority or the State Legislatures or Parliament.
