So long as your processed e-return for relevant Assessment Year is still with CPC, the online rectification application may be made on website. However, in case, your processed e-return has been transferred to your Assessing Officer, then, you need to approach AO with rectification application on paper. For knowing the location of processed e-return (whether with CPC or the AO), the taxpayer is advised to login to the website using his/her user id and password and go to 'Services – CPC Processing Status'. The process status of return can be checked for a given assessment year.
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