Wrong service bills issued and return already filed

rajul (Finance Professional) (67 Points)

25 April 2017  

Sir/Madam 

How to show or correct service tax returns for bills wrongly issued or issued for wrong amount. The bills are  for the Period 

1) Apr - sep 2016

2) Oct - Mar 17

Returns are already filed for the periods.

Can the bill be cancelled and new bill issued . If so how to show its impact on the returns.