Airtel launched its 4G services based on TD-LTE technology in Kolkata on April 10, 2012, making it the first city in India to get commercial 4G service.
The 4th generation (4G) mobile telecommunication service, using TD-LTE technology, was started for the first time in India in;
Asked in KPSC KAS Prelims 2014 · Topic: Data Communication and Transmission Modes (Unguided Transmission Media (Radio Waves, Microwaves, Infrared))
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