Justice Tripathi graduated in law from Lucknow University in 1990. He enrolled as an advocate on January 11, 1992.
His practice was mainly on the civil side. He served as the additional chief standing counsel for the State of Uttar Pradesh since October 2007.
He also appeared as counsel for the Kanpur Development Authority, Kanpur Nagar Nigam, UP Food and Essential Commodities Corporation, Agra Development Authority, Moradabad Development Authority and Kumaun University.
Justice Tripathi was elevated as an additional judge of the Allahabad High Court on September 27, 2013. He was made a permanent judge on April 10, 2015.