Stocks of telecom companies tumbled as much as 6 per cent after Reliance Industries Ltd announced extension of free voice and data offer for existing and new consumers of RJio till March 31.
The 'Jio Happy New Year Offer' will also be extended to existing customers on current SIMs, he said.
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.
Reliance Jio, Ambani said, is the fastest-growing technology company in the world. "In the first 3 months, Jio has grown faster than Facebook, WhatsApp or Skype," he said.
RIL, in September, stormed into the telecom business announcing free voice and data till December-end.
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