You have to file a revised return in order to correct your original return filing details. Please follow below steps to correct it after logging into your account:
Step1: Click on revise return link given below 'Download Acknowledgment'
Step2: Navigate till the page where you want to make correction. You can follow wizard (next button) or browse from top Menu (Income>>Salary Income).
Step3: Make necessary corrections
Step4: Navigate till the end of the wizard, in between you will find a page 'Return Type'. Select return type as 'No(Revised)' and enter your original 'E-filing Acknowledgement No.' and date of filing which can be found in your original ITR-V.
Step5: Move till the end of the wizard and make payment to confirm revised return filing.
You shall get your revised ITR-V in your login shortly afterwards.