Wrong gst number on import igst bill of entry

Ashok (Executive officer) (48 Points)

20 July 2017  

Sir We imported goods . Paid IGST and cleared the shipment from customs. Clearing agent ; has put wrong GST number by mistake on the bill of entry (  2digit interchanged ) What to do to correct the GST number and to get the input credit ?

pl advise 

regards 

Geeta Jain