1. What I fear most when doing business in India is "Hong Kong auction, and the payment is sold out". The traditional concept of detaining goods by bill of lading doesn't work in India. If the customer refuses to pick up the goods, refuses to pay, and is unwilling to give the consent of resale, he is waiting for the auction, which is "technically legal" for them.
2. I read in Ningbo Shipping Magazine that there is an organization that specializes in handling Indian goods. Let me help you find your contact number tomorrow. You can ask them for advice.
By the way, you may encounter similar problems when doing business with Turkey, so be careful.
I hope you can solve this problem as soon as possible.