Income tax refund

i have filled income tax return for A.y. 2010-11  on 30.07.2011 claming an amount Rs. 90,000.00 as income tax refund u/s 89.(relief under income tax ). because the amount of TDS deducted amounting Rs. 108000.00 was received in relation to 6th pay commision increment it was taxed on the rates of A.y. year 2011-12.

but till date i have'nt received the refund or any intimation. plz tell me in how much time did the refund is processed for payment on a general basis or i should do something else.