Shah started practice in 1963 in the Gujarat High Court on Constitutional, Civil and Criminal matters. He also served as a lecturer in Motilal Nehru Law College since September 1971. He was appointed Assistant Government Pleader and Public Prosecutor in Gujarat High Court. On 28 January 1983, Shah was appointed Additional Judge of the same High Court. On 2 August 1995, he became the Chief Justice of the Bombay High Court. Justice Shah was elevated as judge of the Supreme Court of India on 9 December 1998 and retired on 24 September 2003.[2] He was appointed the Chairman of the Special Investigation Team looking into the black money issue in India.[3] In 2016, Justice Shah published a book named Commentary on Law of Mines & Minerals.[4]