Courier delivered in open condition

Location/place: Korba, Chhattisgarh

Name of company/service: DTDC Courier & Cargo limited

I have used to DTDC courier service for deliver my parcel to bilaspur on 27/01/13. But It has deliver with a single steeple envelop which is empty. & it has delivered on 04/01/13.
CN no. M83329863.
It has been refused by the receiver.