KSK Energy Ventures on Friday informed the exchanges that India Opportunities III PTE Ltd, Debenture holder and IDBI Trusteeship Services Ltd, Debenture trustee of Sai Regency Power Corporation Private Ltd, subsidiary of the company, have filed a petition for Corporate Insolvency Resolution Process before the National Company Law Tribunal, Chennai Bench, on March 27. The stock of KSK Energy slipped 1.15 per cent at ₹0.86 on the BSE.