India Post — lost registered post - pune

Address:

Pune, Maharashtra, 411007

I was expecting a registered post letter. I had given very precise address to the sender. On 20th Dec 18 the letter reached the aundh local post office. So the pin code was correct. After that I kept on tracking it and was hoping that it will be delivered within next 2 - 3 days, which is usual for Registered post.

a week went by and it still showed at post office.

Later on 27 dec it showed out for delivery. I was hoping that at least now it will be received.
The postman did not turn up the whole day and later at 7PM same day it showed status as 'Address insufficient'

This was a big surprise to me as the address and pin code must have been correct, else it can not land at the right postoffice in the first place.

I called the post office, they said it's a technical mistake and it will be delivered.
Now 4 more days have gone and the letter is still not delivered.
It's status now shows redirected??

Looks like it's lost.

I am disappointed to find India post registered letter being lost like this.
I will go to the post office to find out what's the issue, but looks like it's lost and this incident is a reflection of poor accountability on the part of India post