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2G and 3G BSNL customers can now upgrade to 4G SIM free of cost The company is offering complimentary 4GB data to customers

BSNL gives big gift to gsm mobile customers to get Free 4G sim card upgradation from existing 2G 3G network sim cards

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freebsd contributor gloomy predictions open Hello BSNL customers, your wait for the new and enhanced My BSNL App is over!!! Now, get control of all BSNL Mobile & LandlineFTTH services conveniently