This document contains the original judgement from the High Court of Delhi in the case of Union of India versus Reliance Industries Limited and Others. It details the legal arguments and the court's decision regarding a challenge to an arbitrator's mandate based on allegations of bias and lack of impartiality. The judgement discusses the procedures for challenging arbitrators under the Arbitration and Conciliation Act, 1996, and relevant Supreme Court precedents. It is useful for legal professionals, arbitrators, and parties involved in arbitration proceedings.