How to rectify an error in tds when return is filled?

varun (Trainee) (29 Points)

04 December 2016  
I received an email from depatt regarding TDS short payment and interest shown. when i login the tds. i tried to download the conso file. but error shown in the there is mismatched challan and online correction shown. So what is the procedure and how to correct my tds.? is it necessary to file revised return? if so please let me know the procedure?