India Post — Item stuck with Tracking status "Item Bagged at London AMU"

A friend sent an important parcel (about 19gms) through Royal Mail 1st class service from London, later to be delivered by India Post on arrival in India.

The parcel was posted on 20/07/2022. The last tracking information was updated on 22/07/2022. The tracking status shows "Item Bagged at London AMU". After contacting Royal Mail, they informed me that my item had been stuck in Customs of India.My tracking ID is: LP[protected]GB (it can be tracked via both Royal Mail and India Post). However, I have not heard anything from customs or from anyone.

I am also attaching the order receipt with this mail. I humbly request you to release my product at the earliest. I am ready to pay any legal customs fees necessary. Kindly tell me the procedure.

Regards
Sparsh Jain