14 April 2013
If you file it e-filling then you can submit a request for re-issue of refund at www.incometaxindiaefiling.gov.in and in such request fill the details of correct and latest address and request to send refund check to this address. In case of manual filling then write a letter to the AO with the request for re-issue of refund cheque with the details of changing of address(new address).