TDS for the previous yr

 To claim TDS for backdated deposits, follow these steps:

 Step 1: Verify TDS Details Check Form 26AS to ensure the TDS details are correctly reflected.

Step 2: Rectify ITR (If Necessary) If the TDS details were not captured in the original ITR, file a rectification request:

1. _Log in to the Income Tax Portal_: Access the portal using your credentials.

2. _Go to 'e-File' > 'Rectification'_: Select the relevant assessment year and ITR form.

3. _Choose 'Taxpayer' as the rectification type_: Select 'Taxpayer' and proceed.

4. _Upload the rectification request in JSON format_: Use the 'Upload JSON' option to submit the rectification request.

Step 3: Claim TDS Credit To claim the TDS credit, follow these steps:

1. _Log in to the Income Tax Portal_: Access the portal using your credentials.

 2. _Go to 'e-File' > 'Rectification'_: Select the relevant assessment year and ITR form.

3. _Choose 'TDS Credit' as the rectification type_: Select 'TDS Credit' and proceed.

 4. _Upload the TDS credit claim in JSON format_: Use the 'Upload JSON' option to submit the TDS credit claim.

Time Limit for Claiming TDS Credit

The time limit for claiming TDS credit is: - _Within 1 year from the date of filing the original ITR_:

You can claim TDS credit within 1 year from the date of filing the original ITR.

 Please note that the above information is general in nature and may not cover all specific circumstances. It's recommended to consult a tax professional or chartered accountant to ensure accurate and personalized guidance.

Thanks a lot, it helped a much needed advice . as I was pursuing the same , got some other suggestions . 
As for the time limit for the credit claim , can by rectification we claim for the missed years , as it was notified neither got reflected in the traces/26a.

Secondly, The upload Json can be done by gnerating the json from excel utlilty or any other utility or downloading the Json from the income tax portal.