DTDC Courier & Cargo — package items destroyed

Address:

Ujjain, Madhya Pradesh

My father sent me a package from ujjain to hyderabad using dtdc courier service. They charged a premium for the service claiming to deliver it in 5 days instead it was delivered in 10 days that too with the package being opened and all the food items were eaten.
Sir, i want your help to ask the company for refund of the courier charge as it was their responsibility. It was a financial loss for us since they cannot manage their services properly.
Thanks,
Shubhangi