India Post — Missing of article from the parcel

My friend sent a parcel from Ujjain (456010) which weighted 330 gms, which consisted chocolates, data cable, and my Spectacles in brown box with proper taping from all sides. but when i received my parcel at IIT madras (600036) one side of parcel was teared and new tape was applied( original tape was transparent and new tape applied was of brown Colour) and my spectacles were missing from it. it was my new lens which i purchased in Ujjain. when my friend went to complain at Ujjain PO the officer says that he is getting such complain first ever in his life and it is not possible. and when i went to IIT MADRAS PO they said that the parcel was delivered in the same condition as it was as they didn't find any disruption on the box. also the bill of the spectacles is missing from the box. such type of irresponsible things are not expected from government body. CONSIGNMENT NO - CI[protected]IN