Telecom TRAI moves SC against TDSAT ruling on predatory pricing Updated : January 02, 2019 11:08 PM IST On December 13, the the Telecom Disputes Settlement and Appellate Tribunal (TDSAT) had dismissed TRAI's order dated February 16, 2018 on predatory pricing due to lack of "transparency". As per the TRAI rule, a tariff could be predatory only if an operator with over 30 percent market share offers tariffs lower than the average variable cost. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.