Blue Dart Express — "Shipment Undelivered not even returned to sender"

Address:

Pune

I have been tracking my shipment from 21st Jan, when it was supposed to be delivered, instead I got a call saying that the delivery cannot be made on the mentioned location.
If the Pin Code doesn't fall under their location why the Shipment was taken in the first place.
Second thing the delivery boy was very rude, he said to pickup at unknown location from unknown hands.
He also did some internal setting to convey it to me that this doesn't fall under bluedarts location for delivery.
He said for one item I cannot deliver to this address.
Though I have received my passport and other items from other delivery services in that area.
The delivery boy was bossing to ask the bank to pick up the document in case if I was not able to pickup, I dont understand the logic here.

So in short they are not delivering neither returning the shipment.
This is local in Pune area, Near Talegaon, 410507 which falls under blue darts pin code.

The bluedart customer care, one day they said its deliverable to this location and other day they deny it.
I have logged several complaints through email and phone all are going unnoticed.

This was a very important document and I dont know what am I supposed to Do.