The Supreme Court today discharged a PIL filed by an NGO challenging grant of 4G licences to Mukesh Ambani's Reliance Jio Infocomm Ltd (RJIL). Justice T S Thakur who headed the bench clutter the petition of NGO, advocate Prashant Bhushan filed a PIL in 2014, and challenged the government’s decision to allow the company to offer voice service on its 4G spectrum. The apex court, however, asked the government to look into the issue of spectrum usage charge (SUC) but did not pass any order on this. Prashant Bhushan, had sought quashing of the permission granted by the Government to Reliance for providing voice telephony on Broadband Wireless Access (BWA) spectrum and pitched for a court-monitored CBI investigation in the alleged Rs 40,000 crore scam.