India Post — my mobile is missing in the parcel

Address:

New Delhi, Delhi

My friend posted parcel on 10 april 2019 wednesday mount gravat east qnsld australia, by express post, item recieved by custom for clearance on 14 april mumbai, then delhi on 15 april, and then i recieved parcel on 5 may, and i pay 8416rs for customs, when i opened it my mobile phone is missing in parcel, 1149 dollars mobile phone is missing, disgusting service from indian post