Ola Cabs / Ani Technologies — mobile lost

As i was traveling with my friends in ola cab on 28th july. As i left my phone inside the cab itself. After stepping down from the cab i called him but still he is denying that he has not taken the mobile. As i can remember exactly that mobile was on the back seat. Even my friends remember that. But the driver is denying and telling some rubbish things. The driver details are as below. So please help me out. So please help me out.
Name: madhu k p ([protected])
Trip: from vidyaranyapura road to 118, outer ring road subramani nagar, guddadahalli, hebbal kempapura
Time: 10:53 to 11:05
Vehicle: white dezire tour (Ka11b2795)