India Post — delay in delivering parcels

Address: East Siang, Arunachal Pradesh, 791102

Pasighat (Arunachal pradesh) indian post is the worst they never deliver a product on time (From deliver i mean they never give a call on time which we have to pick by ourself). The item takes 5-6 days max to reach itanagar from any part of india. But to reach pasighat item needs at least 4 days to reach whereas pasighat is on 4 hours away from itanagar and the products are send by state transport which runs everyday in two shifts morning and afternoon. Yet pasighat post office will open the bags or call after 3-4 days. This is really annoying i am tired of running to post office every single day. Please try to resolve this problem