India Post — Not delivered after 20 days, EN[protected]IN

I had sent a document on 28 Aug 2021 to USA. Tracking number is EN[protected]IN. This document has till now not reached its destination. I was told it is the fastest service. You should call it slowest. 20 days are over yet it has not reached USA. what kind of speed post it is?? The charges are heavy but the service is not matching. I should not have trusted speed post. i made a big mistake.