Unidentified persons stole a bag containing jewellery worth ₹1.68 crore and ₹2 lakh cash from a passenger of an MSRTC bus on Mumbai-Nashik highway, a police official said on Sunday. The incident took place at 1:30 am on Saturday near Umbarmali village in Thane's Shahapur taluka, Kasara police station inspector Suresh Gavit said.