Got an email from Income Tax Department stating mismatch in Incom

The Email content is as such: Your return for AY 2017-18 bearing Ack. No. [deleted] was taken up for processing and on verification it was found that it contains arithmetical errors/ incorrect claims/ inconsistencies with respect to Audit Report /Form 26AS and the same is indicated in the table annexed. 2. You are required to provide your response to this communication by electronic mode using your account on the e-filing website, wherein a link has been enabled showing the pending actions. If you agree with the differences indicated in the table annexed, a) either fully, or b) partially, You may exercise your option of filing a revised return, so that the omissions in the return of income can be completely taken care of within the meaning of section 139(5). 3. However, you have also been afforded a facility in the e-filing portal to state the extent to which you are in agreement with the difference as indicated in the table. For the disagreed portion, please provide the amount and the reason for such disagreement. I would appreciate if one can help me.