"Starting December 4, 2016, every new Jio user will get Jio's data, voice, video and the full bouquet of Jio applications absolutely free till March 31, 2017," RIL Chairman Mukesh Ambani said.
The 'Jio Happy New Year Offer' will also be extended to existing customers on current SIMs, he said.
Idea Cellular, Bharti Airtel and Reliance Communications stock witnessed heavy selling pressure following the announcement.
At the end of today's trading on BSE Idea Cellular was quoted at Rs 72.95 - down 5.93 per cent, while Bharti Airtel settled at Rs 319.10 - down 1.66 per cent. Reliance Communications closed at Rs 35.75, down 5.05 per cent.
RIL, in September, stormed into the telecom business announcing free voice and data till December-end.
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