Justice Sanjiv Khanna was born on 14th May, 1960; he had his early education in Delhi before graduating from the University of Delhi in 1980. After studing Law from the Campus Law Centre, University of Delhi, he was enrolled as an Advocate with the Bar Council of Delhi in 1983. Beginning his practice in the District Courts at Tis Hazari in Delhi, he soon shifted and primarily practiced in the Delhi High Court. His field of work was wide and varied from writ petitions in public law matters, direct tax appeals, income tax prosecutions, arbitration cases, commercial suits, environment and pollution laws matters, besides medical negligence cases before consumer forums and company law cases before the Company Law Board. As an Additional Public Prosecutor representing the Government of Delhi and Amicus Curie, he had argued criminal cases in the Delhi High Court. On appointment as the Senior Standing Counsel he had appeared and argued cases for the Income Tax Department for about seven years. In 2004, he was appointed as the Standing Counsel (Civil) for the Government of National Capital Territory of Delhi in the Delhi High Court. On 24th June, 2005 he was elevated as an additional Judge of the Delhi High Court and became a permanent Judge of the Delhi High Court on 20th February, 2006.
He was elevated as a Judge of the Supreme Court of India on 18th January, 2019.