Partner

Gunjan is a New York-qualified attorney who specialises in international arbitration, international dispute resolution and advising clients on complicated issues of public international law. He holds a Jurisdoctorate from New York University School of Law, and a Bachelor of Science in Foreign Service (International Law, Institution and Ethics) from the Walsh School of Foreign Service at Georgetown University, Washington, D.C. – where he was awarded a Krogh Scholars Honor’s Medallion and achieved a Certificate in Asian Studies.

Gunjan is currently ranked as a leading lawyer for international dispute resolution by both of the world’s foremost legal directories, Chambers and Partners and Legal500. In those directories, his clients regularly anonymously praise him as “superb”, “fantastic”, “invaluable”, “strategic”, “very able”, “highly experienced” and “incredibly knowledgeable”; as providing “clear and comprehensive” “strategic guidance” and giving “profound . . .insights” and offering “precise analyses”. His clients have added: “As a client, you feel as though you are in safe hands”. Clients have also described Gunjan as “excelling in the depth of his knowledge”, a “consummate professional”, with “fantastic drafting skills”, “quick and very easy” communication and “senior-level expertise”. (Chambers and Partners, 2025; Legal500, 2021-2025).

Gunjan advises clients in large-scale and complex international disputes. He has represented States before the International Court of Justice on numerous occasions and private entities and States in numerous public and confidential investor-State arbitrations. He has served as an expert witness on behalf of a State on matters of sovereign immunity, public international law and administrative law. He has practised before a wide range of U.S. federal and state courts. He has also acted as counsel to parties in commercial arbitrations.

Gunjan’s non-contentious experience includes providing investment and dispute resolution advice in over 300 large commercial deals, including PSCs, JOAs, EPCs, PPAs and other large construction and energy contracts. He also counsels clients, including States, on maritime and territorial disputes and the United Nations Convention on the Law of the Sea. He routinely advises Fortune 500 and other major international companies on the protection of their foreign investments from political and regulatory risk. He represented the interests of a company in discussions with a U.S. government entity as it negotiated two free trade agreements. Gunjan is a member of the Association of International Energy Negotiators. Prior to joining Volterra Fietta, Gunjan spent nine years in the international litigation and arbitration group of a major international law firm. He was also a Litigation Fellow at the Innocence Project, a charitable organisation dedicated to exonerating wrongfully convicted individuals by using DNA evidence. As a law student, Gunjan worked in Alabama on correcting systemic injustice in the US criminal justice system with the Equal Justice Initiative, a Montgomery-based charity.

Direct dial: +44 (0)207 380 3531

Email: gunjan.sharma@volterrafietta.com

Education

New York University School of Law (2006-2009)

New York City, New York, U.S.A. – Jurisdoctorate

Georgetown University, Walsh School of Foreign Service (2002-2006)

Washington, D.C., U.S.A. – Bachelor of Science in Foreign Service

Bar admissions

Admitted to practice law in New York, U.S.A.