Income tax return

You can revise ITR any number of times provided it was filed before the due date and it is revised within one year from the completion of relevant assessment year.

Before revising the return ensure that you have entered acknowledgement number and date of previous return in the revised ITR. 

You should answer the question - "Whether original or revised return?" with "revised"

and for the question "Return filed under section" - select "17-Revised 135(5)"