Later, in July 2015, a PIL filed in the Supreme Court by an NGO called the Centre for Public Interest Litigation, through Prashant Bhushan, challenged the grant of a pan-India license to Jio by the Government of India. However, four months later in October, the company postponed the launch to the first quarter of the financial year 2016–2017. In June 2015, Jio announced that it would start its operations throughout the country by the end of 2015. Later continuing as RIL's telecom subsidiary, Infotel Broadband Services Limited was renamed as Reliance Jio Infocomm Limited (RJIL) in January 2013. Although unlisted, IBSL was the only company that won broadband spectrum in all 22 circles in India in the 4G auction that took place earlier that year. In June 2010, Reliance Industries (RIL) bought a 95% stake in IBSL for ₹4,800 crore (equivalent to ₹91 billion or US$1.2 billion in 2020). The company was registered in Ambawadi, Ahmedabad, Gujarat on 15 February 2007 as Infotel Broadband Services Limited (IBSL). As of September 2020, Reliance Industries has raised ₹1.65 lakh crore (US$22 billion) by selling nearly 33% equity stake in Jio Platforms. In September 2019, Jio launched a fiber to the home service, offering home broadband, television, and telephone services. It is the largest mobile network operator in India and the third largest mobile network operator in the world with over 42.62 crore (426.2 million) subscribers.
Jio soft launched on 27 December 2015 with a beta for partners and employees, and became publicly available on 5 September 2016. It does not offer 2G or 3G service, and instead uses only voice over LTE to provide voice service on its 4G network. It operates a national LTE network with coverage across all 22 telecom circles. Reliance Jio Infocomm Limited, doing business as Jio, is an Indian telecommunications company and a subsidiary of Jio Platforms, headquartered in Mumbai, Maharashtra, India.