Centre, SEBI have approved divestment of Neyveli Lignite Corporation shares to state PSUs: Jayalalithaa The Securities and Exchange Board of India (SEBI) and the Union government have approved the Tamil Nadu government’s request to divest 3.56% shares of Neyveli Lignite Corporation to the state public sector undertakings to meet the regulatory norm of 10% public holding, said Jayalalithaa.