Tata Teleservices Ltd vs Bharat Sanchar Nigam Ltd. & Ors

The Supreme Court ruled that the appellant is liable to pay Access Deficit Charges (ADC) to BSNL for the period from 14.11.2004 to 26.8.2005, as mandated by the TRAI regulations under Section 36 of the TRAI Act, 1997. The Court clarified that ADC is a levy imposed to support rural telephony and is part of the interconnection usage charges that service providers must adhere to. The judgment upheld the regulatory framework established by TRAI and the obligations of service providers under their respective licenses.