Rectification of income tax return

you can revise your return & claim TDS.

you must file revise return electronically

As you have filed ur return of Income within due date prescribed u/s. 139(1) u can file revise return of the relevant assessment year. Maximum time available to revise the return is one year from the end of the relevant assssment year. So go ahead and claim the refund by filing the revised return. 

Dear friend you can rectify a return only by revising the return.

this statement is based on a case law of Gopaldas Parshottamdas v CIT (1941) 9 ITR 130 (A11)

Revising is the only option that you have.

u have to revise your return............

ya..........u should  Revise ur Return to claim TDS.