With which telecom company, taxi aggregator Uber cabs has tied up to set up WiFi hotspots in each of its cabs?

With which telecom company, taxi aggregator Uber cabs has tied up to set up WiFi hotspots in each of its cabs?
[A]Vodafone
[B]BSNL
[C]MTNL
[D]Airtel

Airtel
The US-based online taxi aggregator, Uber cabs tied up with Airtel to set up WiFi hotspots in each of its cabs. As part of partnership, consumers using Uber cabs can pay through Airtel’s mobile wallet service “Airtel Money” and would also get to use free 4G speed, Wifi in the cabs. Mumbai will be the first city in India to enjoy free high-speed internet from Uber, powered by Airtel 4G and will be rolled out in other cities soon.