Bharti Airtel Ltd.

Bharti Airtel may kick start its fourth generation services from Kolkata on March 20. This would be the second launch of 4G services in India after Augere Wireless, which has been offering high-speed data through dongles (data cards) since last month. Bharti Airtel had paid Rs 3,314.36 crore for getting fourth generation spectrum in four circles - Maharashtra, Karnataka, Punjab and Kolkata - in a government auction held in 2010.