Wrong commercial invoice submit same party.

Correct the invoice and send this application to the customs commissioner for a refund

https://www.cbic.gov.in/resources//htdocs-cbec/customs/forms_pdf/102.pdf;jsessionid=82256545CFC6279C5EC03D6B26CEA0D0

The main issue is the bankers discount and refund of remittances as well. Follow up with themand once cleared like Saurav mentions, apply for customs.