Income tax refund quary

Hello, all off

                     I am fill income tax return on 11/7/2011 for A y 2011-12 in this return as per my data re 34950/- is refund but as per income tax intimation  data under sec 154 not showing refund i alredy 2 times sending rectification to income tax . but there is no an y answer?i am correctly fill TDS sehdule. but why not show refund in their software under sec 154. so how can i get my refund? is a fill revised return? plz, give me helpful answer