Shipping amendment under section 149 and subsequent claim of draw back and Rodtp - Customs - Exim - SEZ

Dear Sir, we have one case of amendment of the shipping bill where the FOB value was wrongly mentioned at the time of export. Post clearance we came to know the mistake and subsequently we have applied for the amendment under section 149 of Custom Act 1962 . The amendment Was approved and a manual certificate was issued to the effect. Since the Draw back and RODTP claimed was not in the actual value and there is no provision to amend the shipping bill in the EDI system what is the procedure for the drawback claim and RODTP claim.