Uber Bangalore — Need help or investigation

Hello Sir/Madam,
Last evening we booked a Uber cab from Bangalore Trinity Metro(MG Road) to the Solitaire Hotel at around 10 PM.My senior colleague(Mr. SUman Kumar Ghosh) who is a diabetic patient was not well due to extensive work pressure throughout the day was sitting at front side.
After reaching destination, we all got down and that person paid the amount and left the cab.In between due to traffic other cars behind and beside were honking to our cab and so my colleague was bit in hurry.DUe to this hurryness he missed the dinner pack he was carrying what he realized after few minutes and by that time our cab left the place.We gave him a call requesting to return the food pack.The driver (Mr. Prakash) returned the same and we rewarded him little for his honesty and responsibility.But when he just left again my colleague realized he could not get his mobile also. At that moment I tried colleague's number, it rang and after few minutes it got switched off.As usual we called the driver again with lot of shame but could not understand hindi or english so he asked to call him someone who knows local language.We gave him a call with the help Hotel's manager that time and got confirmed he will return the same if he get that in the cab.We also confirmed him to reward for his help. accordingly without getting no response I gave a call at 23:30 and that time driver confirmed he could not find any mobile but my colleague is saying he is almost confident that he lost his mobile in the cab.
So at this stage seeking your help to re-investigate and help this person as he has urgent need of that mobile due to official and personal reason.

So awaiting your response on this to be grateful to you all.

Regards,
Swarup Bhattacharya
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