Section 123(1)(xi) in The Delhi School Education Rules, 1973
(xi)ask for or accept (except with the previous sanction of the Director, in the case of an aided school, or of the managing committee, in the case of an unaided school), any contribution, or otherwise associate himself with the raising of any funds or make any other collections, whether in cash or in kind, in pursuance of any object whatsoever, except subscription from the members of any association of teachers;