Bag lost
Lost my bag in an auto rickshaw

I was travelling in an auto rickshaw yesterday From "Andhra Bhavan" to "Mandi House Metro Station" in Delhi.

I lost my red color backpack in that auto. My backpack has all my bank documents and especially some very important papers related to my education. It has my address proof and contact details written all over it.

I personally went there and inquired all the auto stands around that area, to find that particular auto. But hard luck.

Can anyone suggest me some good way to trace it back?? If anyone found it, please return it.