India Post — regarding theft of all material from cargo

Address:

Bokaro, Jharkhand, 829144

I send 2 cargo of 30kg each from saudi arabia, al qassim, buraidah 1. Cp[protected]sa; 2. Cp[protected]sa
By saudi post after 1 month i received the cargo at post office but when i see the cargo it was fully in damaged condition and all expensive material from it removed from one parcel 12kg less and from another 6 kg less total 18 kg material is removed from it. I want my compensation and want to know who do this. Please resolve this issue as soon as possible. I am waiting for your positive response.