Section 19(2)(b) in The U.P. Municipalities Act, 1916
(b)[] [Re-numbered by U.P. Act No. 9 of 1922.] on the ground of any non-compliance with this Act or any rule, or of any mistake in the forms required thereby, or of any error, irregularity or informality on the part of the officer or officers charged with carrying out this Act or any rules, unless such non-compliance, mistake, error, irregularity or informality has materially affected the result of the election.