Some of the private telecom operators have run into tens of millions of liabilities with the government after failing to pay royalty as promised. According to Nepal Telecom Authority (NTA), the biggest defaulter is the United Telecom Limited (UTL). "The total outstanding royalty of UTL is to the tune to Rs 89 crore," said NTA executive chairman Bhesh Raj Kandel. Presenting his report to the Public Accounts Committee (PAC) of the parliament, Kandel said that Ncell also has dues amounting to Rs 20 crore. Both Ncell and UTL had bid to pay more than the minimum 4 percent of revenue as royalty when they obtained the license. After the UTL failed to pay its dues, the Ncell, too, began to complain. It has now filed a case at the Supreme Court (SC).