Refund for already submmited return

I have Summited Retrun for F.y. 14-15 In july 2015 (ie before due date) . That Time 26 As was showing Rs. 262 TDS. My Return Was below Tax limit therefore i claimed Rs. 262 as refund. Return Was processed u/s 143 (1) & Refund was given. Now when i check last year 26 AS again,  it is showing Rs. 2500/- TDS. Now my queries is that should i file revised return for F.Y. 14-15 for getting That tds amount as refund. Pls Advice me.