India Post — Non update of article after Kolkata RMS Mail TMO

Address:

Malviya Nagar, Jaipur, 302017

I booked my article from Malviya Nagar S.O, Jaipur on 04/12/2021 to send it to Wokha, Nagaland with tracking id ER[protected]IN (using speed post service) but after 08/12/2021 when it get reach to Kolkata RMS Mail TMO it is not updating any further and right now on 15/12/2021 it still showing last update Kolkata RMS Mail TMO . Why is that happening as article is so urgent for me to reach on time and its already took 11 days . I am so tense now please help