01 August 2011
Income Tax Department is keeping Offices opened on Sunday also. The last date is 31.7.2011 and it has not been extended. Hence, in your case if the return is taxable then your due date is 31.7.2011. If there is any refund then you can file in the next day or month but you will not be allowed interest on the said refund. If tax is payable then interest is to be charged from you. In no case your due date is 1st August,.