The finance ministry has  issued Notification No. 49/2010 - Customs (N.T.)  dated 17th June, 2010 http://www.cbec.gov.in/customs/cs-act/notifications/notfns-2k10/cs-nt2k10/csnt49-2k10.htm  allowing the exporters more time to file their claims. The longer period will be available under the rules made under Section 74, as well as Section 75 of the Customs Act, 1962.