Section 100(5) in Andhra Pradesh Municipal Corporations (Conduct of Election of Members, Election Expenses and Election Petitions) Rules, 2005
(5)The Tribunal may upon such terms as to costs and otherwise as it may deem fit, allow the particulars of any corrupt or illegal practice alleged in the petition to be amended or amplified in such manner as may in its opinion be necessary for ensuring a fair and effective trail of the petition, but shall not allow any amendment to the petition which will have the effect of introducing particulars of a corrupt or illegal practice not previously alleged in the petition.