In A/Y2011-12, in spite of my repeated requests, I did not get my TDS Certificate from Deductor. I filed my return just before 31 july 2011(due date) . I included the gross amount in my return,but could not claim the TDS amount for want of TDS Certificate. I paid full tax,ignoring tds amount that was really due to me. Much later,Deductor sent me TDS Certificate d/d 23/09/2011 (handed over to me in October 2011). Not knowing TDS matters much,I was struggling to find out from different people how to claim this amount.On advice, I was about to raise a revised Return,when I received Refund by ECS on 09/12/2011(surprisingly fast that year). That refund did not cover this TDS amount even thoughi it is shown in Form 26AS as having been booked on 24/09/2011,may be because I had not claimed. I was told that Revised Return is possible before31/03/2012 or Refund date whichever earlier.That TDS certificate is still with me unclaimed. Is it possible to claim this in my return for A/Y2012-13 ?