Section 64A(1) in The Representation of the People Act, 1951
(1)If at any time before the counting of votes is completed any ballot papers used at a polling station or at a place fixed for the poll are unlawfully taken out of the custody of the returning officer or are accidentally or intentionally destroyed or lost or are damaged or tampered with, to such an extent that the result of the poll at that polling station or place cannot be ascertained, the returning officer shall forthwith report the matter to the Election Commission.
