Mithun Mansinghani is an experienced appellate and trial litigator who has argued cases at all levels in state and federal court, including at the U.S. Supreme Court. His practice focuses on commercial litigation, regulatory issues, and appeals. Mr. Mansinghani has been ranked by Chambers & Partners both in Oklahoma and nationwide for his litigation work. He also has been recognized in Lawdragon’s 500X – The Next Generation list for his appellate expertise and Benchmark Litigation’s 40 and Under list for his commercial litigation.
From 2017 to 2022, Mr. Mansinghani served as Oklahoma Solicitor General, the state’s chief advocate on appellate matters, constitutional issues, and challenges to federal regulation. In that role, he also advised the Attorney General, the Governor, the Legislature, and other state leadership on critical and high-stakes legal issues. Mr. Mansinghani has argued more cases before the Justices of the Oklahoma Supreme Court than any other litigator in the last decade.
Mr. Mansinghani has been nationally recognized for amici briefs he authored at the U.S. Supreme Court. These amici briefs have been cited in Supreme Court opinions, referenced by the Justices at argument, and received a National Association of Attorneys General “Best Brief” award. He also provides commentary on U.S. Supreme Court cases for media outlets including NPR, TheNew York Times, SCOTUSblog, and Bloomberg.
In addition to appellate litigation, Mr. Mansinghani has first-chaired several bench trials to successful verdicts. He has conducted all stages of district court litigation, and has prevailed in numerous cases on summary judgment and motions to dismiss.
Mr. Mansinghani’s extensive experience includes federal and state constitutional law, litigating federal and state regulation, and work with state attorneys general. He has particular expertise in matters related to energy and the environment. Mr. Mansinghani also has significant experience negotiating with Native American tribes and has litigated some of the nation’s most important federal Indian law cases.
Prior to serving in the Oklahoma Attorney General’s Office, Mr. Mansinghani was a litigator with Gibson, Dunn and Crutcher in Washington, D.C. He served as a law clerk to the Hon. Jerry E. Smith on the U.S. Court of Appeals for the Fifth Circuit. Mr. Mansinghani graduated with honors from Harvard Law School, where he was as an editor of The Harvard Law Review.