India Post — My Article no -EN[protected]IN not delivered and no return

My article is not delivered, when I will receive my article back ? one month completed, this article my father hospital original bills and discharge documents for insurance claim as for insurance policy this documents needed to sent before this month end March 20th

please help me ASAP, other we lose more than 3 lacks insurance claim amont.

my Article no -EN[protected]IN

my complaint no - [protected]

[protected] - i called more than 15 times with no proper response and details.

Post office also not respond clearly they say we have no idea but this article wait for some more days told me.

Written complete also given post office

I sent my issue for twitter also for india post

I tired all possibilities ways for my article issue

sender name - k. venkatareddy and phone no-[protected]