State-owned Oil India is likely to move the TDSAT this week against the telecom department seeking about Rs 48,500 crore in past dues on the surplus bandwidth capacity it had leased to third parties, its chairman and managing director Sushil Chandra Mishra has said.

Other non-telecom firms, which have also been slapped with similar demands, too are likely to move the Telecom Disputes Settlement and Appellate Tribunal (TDSAT).

Those likely to go to the TDSAT include gas utility GAIL India Ltd, from whom Rs 1.83 lakh crore has been sought, PowerGrid Corp that has been slapped with Rs 21,953.65-crore liability and Gujarat Narmada Valley Fertilisers & Chemicals Ltd, which faces a payout of Rs 15,019.97 crore.

After the Supreme Court ruling of October 24 that non-telecom revenues should be included for considering payments of government dues by firms holding any sort of telecom licence, the department of telecommunications (DoT) slapped Rs 1.47 lakh crore demand on mobile phone operators such as Bharti Airtel Ltd and Vodafone Idea Ltd and another Rs 2.7 lakh crore on non-telecom firms.

Non-telecom firms such as Oil India, GAIL and PowerGrid filed clarificatory petition on the applicability of the October 24 order on them, but the apex court on February 14 asked them to approach the appropriate authority.

“According to our licence condition, any dispute has to be referred to TDSAT and so we will be approaching TDSAT within a weeks time,” Mishra said.