Vedanta Ltd. is likely to scale back its proposed demerger to four businesses, from the originally planned six, after a corporate tribunal blocked the spin-off of its power arm Talwandi Sabo Power Ltd., The Economic Times reported on Wednesday, citing sources.On March 4, the National Company Law Tribunal dismissed the demerger of Talwandi Sabo, citing objections from Chinese firm SEPCO, which holds debt of ₹12.51 billion in the entity. The report said SEPCO accounts for over 75% of Talwandi Sabo's unsecured liabilities, effectively giving it a veto over the company's capital structure.