Section 490(2)(a) in The Delhi Municipal Corporation Act, 1957
(a)all councillors shall, on the date of the dissolution, vacate their office as such councillors and the persons referred to in clause (b) of sub-section (3) of section 3 shall cease to be represented in [a Corporation] [Substituted by Delhi Act 12 of 2011, section 2(a), "for the Corporation" (w.e.f. 13-1-2012)];