India Post — Item doesn't shipped

Hi, I want to raise my concern about EMS/ India Speed post #.Ep[protected]in. I have sent parcel through the speed post to USA on 29th of November 2021. It was updated as it was processed through post hubs towards the destination but it's been stuck at one place when it was arrived at NSH Delhi. It's just showing item bagged since Dec 2nd. There's no update since then, I have spent big amount to expedite it since it was urgent parcel otherwise it could have sent regular mail. Please help me out to resolve this problem to deliver this item at timely manner.