TDS Claim for Preceding Years

You can't claim previous year TDS in current FY except any c/f...

But,
You can try to file AY 15-16 and 16-17 ITR with Condonation delay request to Jurisdictionall CIT...

Agreed With Shri Raja P M

I have different opinion, if you forget to claim tds in earlier years and not able to file returns of those years due to time barred and offered income in returns of respective years, you can claim tds of those earlier years in cy return by selecting particular AY in tds column.
I have done this, and got refund too.

Different views are Welcome with Happily...

But,
It's not better without rules... May be filed with anything in correct way then no problem in future.

If not ....

Mr Bhavik  - Iam struggling to get my refund of AY 2016-17.  In AY 2015-16 I have carried forward and B/F in AY 2016-17. Still due to wrong programing or whatever computer is not able to take een if you put proper AY.

There is Arragement in ITR-4 for Claiming a previous TDS refund Coloum so You can claim your refund there.

Mr Manoj - That does not work. Something wrong with their processing Software.

One must C/F  in Prevous return and B/F in the next return. The corresponding Income pertaining to TDS must be taken in relevant AY