Revised itr filling due date

If the assesment is over you cannot revise the return but you can rectify the return for apparent mistakes which you have already filled such as TAN no or TDS amt etc.

If the assesment is not over than you can file revised return u/s 139(5).

I hope this is clear

I want to deposit the TDS back to IT department as I was not eligible to get refund. Can this be done and how?

It is better you inform them rather than they catchin you.

Wrong tax credits must have come to your account. you must inform them that these tax credits dont belong to you

You need to inform TDS Ao of your IT range.

Will deposit back the TDS refund with form 280.... Where do I enter details of this form in ITR form? And details of Tax deposited including penalty with IT department?

No you have to inform your TDS AO  and tell them that you wrongly claimed excess tax credit. That did not belong to you. If the TDS deductor has rectified his tds return it will any way be claimed from you. So instead of they coming to you - you better go fast and tell about the excess claim.