Indian smartphone market is rapidly growing and with the increasing rates of smartphone buyers, retailing of high-speed SIM cards are also increasing. 

As per the latest reports, GSM telecom subscribers have declined since last year. Reports reveal that previously, GSM users were 8.18million in December 2016, whereas it was counted to be 5.15 million in January 2017.

Reports say that, out of whole data, Airtel is holding the large number of subscribers, which is 3.55million. Cellular Operators Association of India (COAI) said, "Airtel is closely followed by Vodafone with 206.44 million subscribers and Idea Cellular with 192.06 million subscribers,”

Director General of COAI Rajan S Mathews said, "The industry continues to provide good service and connectivity across the country and develop mobile infrastructure in far-flung regions, despite extremely trying times and poor financial health of the sector,”​

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