4 New Square Chambers, a London-based commercial set, includes Arvind Nayar as a door tenant. In India, he represents clients before the Supreme Court, State High Courts, and the National Company Law Appellate Tribunal in matters involving insolvency and issues related to arbitration awards. He is noted for his arbitration expertise, acting for clients in international arbitration in various jurisdictions, including India, Singapore, Dubai, and the United Kingdom.