Forgot to take 26as credit

Ya, agree with Divakar. But rectification will do the needful

Order u/s 143(1) will consider TDS (TAN wise) as per Form 26AS or amount as claimed in ITR whichever is lower. Hence if we omit to take claim of particluar TDS system will not automatically allow the same unless it is claimed otherwise.

Agree with Raja Sir. Unless the return related to AY 2017-18

Hi Aniket,

Although, a belated return (return filed after due date) can not be revised as of AY 2016-17, yet Income Tax Department provides an option to the taxpayers to rectify few mistakes which are apparently visible. The rectification is to be filed u/s 154(1) and it has to be filed online.

There are few conditions attached with this rectification - 

1. Rectification can only be filed after ITR has been processed at CPC, Bengaluru. For seeing the status of ITR, keep a close check of the status as updated by IT Deptt by logging in income tax website. 
2. The rectification can't be filed where there is change in income or any new deduction or exemption has to be claimed. 
3. There should be an apparent mistake in ITR which includes error of fact, arithmetic mistake, small clerical error or error due to overlooking compulsory provisions of law. 

In your case, the mistake is apparent because there is a error of not considering tax credit as per 26AS. Hence you can rectify the mistake by filing a rectification. For this after your return is processed, log-in on income tax website and file the rectification by quoting the correct reason.