Write a letter to Manager, Haryana Roadways, letting him know of the loss of your bag in the bus (sample)
I would herewith inform you that on the 8th I was a passenger in a Haryana Roadways Bus LX 4129. The time was 2 p.m. The bus was packed with passengers and while coming down at Delhi Inter State Bus Terminals, I forgot to collect my handbag.
The handbag was black in color with Air India pointed on it. It was locked with a small Harrison lock. It was of a middle size and contained some clothes and costly books on engineering. The driver of the bus was a tall sikh of a fair complexion who was courteous to every passenger.
I request you to conduct a search for my handbag. I hope the conductor or some passenger may have picked up the bag and deposited it with you. Please inform me if you get the bag so that I may collect it.