Professional Courier — loss of material inside the courier

Address:

Guntur, Andhra Pradesh

My mom has sent me a parcel, containing tablets and nokia BH-217 blue-tooth on dec 1st from bangalore, with a sealed stitched parcel, i got a call from pick up point in mangalagiri, that they received the courier and asked me to come and take, as soon as i received, i checked nothing was there inside except an empty box, i asked the incharge person he told i m nt responsible for this, later i called mumbai,hyderabad,bangalore, none is taking the responsibility of the lost good, i feel ashamed of the professional courier such mere stealing is going on.