Mukesh Ambani-led Reliance Jio beat telcos Airtel, Vodafone and others, to become the fastest 4G service provider in India in December 2016, according to Telecom Regulatory Authority of India. In October, TRAI had revealed that Jio was India's slowest 4G operator. Jio recently announced its Happy New Year Offer that extends its introductory free services till March 31, 2017.