Trackon Couriers — Courier company lost my package

Address:	Chandigarh, Punjab, 160047
Website:	trackoncourier.com/default.aspx

I have submitted courier to one of the store of Trackon also i requested them to deliver it within 7 days they assured me to deliver it within 5 days now as they didnt delivered it on time i asked them to send my courier back .its already been more than 24 days and no one is helping me.Customer care says daily that we dont know where the courier is. These guys have lost my courier and now i am helpless as it contain my original marksheet.Please help also check the attach screenshot which shows how badly they update the status in website. awb number[protected]