Bank account

You can file ITR but incase refund you cannot file, b'coz it will ask for Bank a/c

but sir i download itr-v prepare software (A.Y.2011-12) in wabsite incometaxindiaefiling.gov.in

in this software when i comput tax ask me that bank account is compulsory.so what i do?

please guide me ,sir.

Why don't you open one Bank Account.  Because even if you select he option of Receipt of Refund by Cheque you wont be required to give your Bank A/c details at that time, but when you receive the refund cheque, you will have to compulsorily deposit it in your bank account.  So for that purpose Opening of Bank ACcount will be necessary.