CBDT Enables Facility to upload Revised Return online for the returns filed manually: 
CBDT Enables Facility to upload Revised Return online for the returns filed manually. The facility to upload Revised Return for the returns filed manually (Paper Filed Returns) is now enabled in e-Filing. Taxpayer are required to suffix ‘0’ (Zeros) in case the acknowledgment number of the original paper filed return is less than 15 digits. Example – Paper Filed Return Acknowledgement Number is – ‘1123456211’, in eFiled return the taxpayer needs to suffix the Acknowledgment number as ‘112345621100000
When a taxpayer discovers any omission or any wrong statement in the original Income Tax Return (ITR) submitted, the same can be corrected by filing a revised  return  in  the  e-Filing  portal.  A Revised Return can be filed at any  time  before  the  end  of  relevant Assessment Year (AV) or before the completion of assessment, whichever is earlier.
Following are the steps to file the Revised Return Online:
A. Prepare and Submit Online ( for ITR-1 & ITR-4 only):
1. Go to the Income Tax e-Filing portal, ‘www.incometaxindiaefiling.gov.in’
2. Login toe-Filing portal by entering user ID (PAN), Password, Captcha code and click ‘Login’.
3. Click on the ‘e-File’ menu and click ‘Income Tax Return’ link.
4. On Income Tax Return Page:

• Your PAN will be auto-populated
• Select ‘Assessment Year’
• Select ‘ITR form Number’
• Select ‘Filing Type’ as ‘Original/Revised Return’
• Select ‘Submission Mode’ as ‘Prepare and Submit Online’

5. In the Online ITR Form under ‘General Information’ Tab, Choose the’Return Filing Section’ as ‘Revised return under section 139(5)’ and ‘Return filing type’ as ‘Revised’.
6. Enter the ‘Acknowledgement Number’ and ‘Date of filing’ of the Original Return filed.
Note:It is mandatory to enter a 15  digit  Acknowledgement Number  while filing  the revised return online. For the Paper Filed Original returns if the acknowledgement number received is less than 15 digits, Kindly suffix the acknowledgment number with zero(s). The below table contains few of the examples.

7. Fill or correct the relevant details of the online ITR form and submit the ITR.
8. e-Verify the returns for faster processing and quicker refunds or Send the ITR-V through normal or speed post to “Centralized Processing Center, Income Tax Department, Bengaluru – 560500”.
B. Upload XML (For all ITRs)
1. Go to the Income Tax e-Filing portal, ‘www.incometaxindiaefiling.gov.in‘
2. Download the  Appropriate ITR utility under ‘Downloads Offline Utilities Income Tax Return Preparation Utilities’.
3. Extract the downloaded utility into a separate folder and Open the Utility from the extracted folder. (For m or e information and prerequisites, ref er the ‘Read me’ document).
Note:
It is Advisable to import the already uploaded XML of the return that requires revision. Such XMLs are available  under ‘My Account View e-Filed Returns/Forms’. Select ‘Income Tax Return’ from the drop down and click ‘Submit’. All the e-Filed ITRs are listed, click on the appropriate ‘Acknowledgement Number’ of the return uploaded and Click on the ‘XML’link to download the same.
4. In the ITR utility, choose the ‘Section’ as ‘Revised return under section 139(5)’ and ‘Filing type’ as ‘Revised’.
5. Enter the ‘Acknowledgement Number’ and ‘Date of filing’ of the Original Return filed.
Note:
It is mandatory to enter a 15 digit Acknowledgement Number while filing the revised return online. For the Paper Filed Original returns if the acknowledgement number received is less than 15 digits, Kindly suffix the acknowledgment number with zero(s). For examples, please refer the ‘Table’ under the ‘Note’ of the previous section.
6. Fill or correct the relevant details and generate the XML.
7. Login toe-Filing portal by entering user ID (PAN), Password, Captcha code and click ‘Login’.
8. Click on the ‘e-File’ menu and click ‘Income Tax Return’
9. On Income Tax Return Page:

• Your PAN will be auto-populated
• Select ‘Assessment Year’
• Select ‘ITR form Number’
• Select ‘Filing Type’ as ‘Original/Revised Return’
• Select ‘Submission Mode’ as ‘Upload XML’
• Click on ‘Continue’

10. Upload the XML in thee-Filing portal and e-Verify the returns for faster processing and quicker refunds or Send the ITR-V through normal or speed post to “Centralized Processing Center, Income Tax Department, Bengaluru – 560500”.
Note:
To know the ‘Acknowledgement Number’ and Date of Filing Original Return’ Go to‘My Account View e-Filed Returns/Forms’ and Choose ‘Income Tax Returns’ from the drop down and Click ‘Submit’.