Auto Rickshaw — Bag Lost in Auto Rickshaw

I lost my bag while travelling from IISc main gate to Al Zara Mandi restaurant. It was kept in the luggage section behind the passenger seat. It was a navy blue Adidas bag and contains a metal bottle of about a litre quantity, a yellow notebook that contains my name and institute name at front page. There is also an umbrella, a spectacle case, few pens, a polo, a tictac, a sanitizer, blue earphone, a white c type charger and other essential items.
If found please return it at the main gate of IISc under my name.