Section 139(1)(d) in The Bihar Panchayat Raj Act, 2006
(d)that the result of the election, in so far as it concerns a returned candidate, has been materially affected-(i)by the improper acceptance of any nomination; or(ii)by any corrupt practice committed in the interests of the returned candidate by an agent; or(iii)by the improper reception, refusal or rejection of any vote or reception of any vote which is void; or(iv)by any non-compliance with the provisions of this Act or of any Rules or orders made thereunder; the prescribed authority shall declare the election of the returned candidate to be void.