Overnite Express — not delivery on time

I booked two items from muzaffarpur to udaipur date[protected]. Courier consignment note number-[protected], item weight-24 kg and amount -2400.
Sir when booked item then says that item delivery[protected] but my item received[protected]. My item is fully damage due to delay of delivery. I have already complained over nite area manager but there is no response from overnite staff. Please consider my complain.