India Post — I am complaining regarding my speed post parcel it has not been delivered

Address:

Nagaon, Assam

My consignment no is es[protected]in it was booked from nagaon head post office in 07 jan 2019 and was supposed to reach guwahati pin code 781022 its been 4 days there is no update except diapatched from nagaon. Sir i have very valuable items in my post please track the latest details. I am worried its lost. Kindly help me
Sir the two places are only less than 100kms away. It should not take this us many days to reach the destination. I was assured that my parcel would be delivered within 3 days of booking. But now there are no updates at all since 7jan. I have no idea where my parcel. It was an urgent parcel and now i am stuck having nothing.