New delhi, Aug. 7 -- The Supreme Court on Wednesday directed electricity regulatory commissions (RCs) across the country to prepare a detailed roadmap for liquidating existing regulatory assets (RAs) within three years. The court also instructed the Appellate Tribunal for Electricity (APTEL) to ensure compliance with this directive by registering a suo motu petition. The direction came in response to a petition filed by Delhi's three major power distribution companies -- BSES Rajdhani Power Ltd, BSES Yamuna Power Ltd, and Tata Power Delhi Distribution Ltd -- challenging the Delhi Electricity Regulatory Commission's (DERC) approach to electricity tariff determination. The companies argued that DERC's tariff policies over the years led to a m...