DTDC Courier & Cargo — watch - lost by the dtdc and casual behavior on providing the solution

My courier has been booked at mumbai for the ahmedabad location.
However it has been reached to delhi and than i got to know from the customer care that my watch is not there in the courier.
Actually i think this is the case of theft or lost of watch.
Since last saturday i am trying to reach out to customer care but they are not responding and picking up my call..
I want the resolution and my watch to at my home..