He is an independent consultant on both domestic and international policies and is Chairman of PRS Consultants, headquartered in India. He is currently Senior Advisor to Dodsal Group, Dubai. He is a Member of the Board of Falcon Corporate Advisory Services and the Hinduja Group India. Ambassador Shah is Board Member of Pathfinder International, Boston, an NGO with an annual budget of $100 million with projects on family planning, ant-HIV Aids and adolescent health care in 23 developing countries, and of Indo-American Arts Society, New York. He is currently Chairman of the Board on Policy and Development, of the Symbiosis International (Deemed University), Pune, and a Member of the Indian Council for Research on International Economic Relations, New Delhi.

He has served as India's Permanent Representative to the United Nations, both in New York and Geneva, India's Ambassador to Japan and Venezuela and India's High Commissioner to Malaysia. During 1998-2000, Ambassador Shah was the Special Envoy of the United Nations Secretary General for Iraq in his capacity as Under-Secretary General, U.N.

He was Joint Secretary in Prime Minister's office under Mr. Morarji Desai, Mr. Charan Singh and Mrs. Indira Gandhi. He has served as India's Petroleum Advisor for Gulf countries with headquarters in Tehran, Iran and has worked as Director in the Ministries of Petroleum, and of Department of Economic Affairs in New Delhi. Ambassador Shah has led a number of official Indian delegations to UNCTAD, ECAFE, OPEC, UN, Disarmament Conference, Non-Aligned and Commonwealth Summits, among other international conferences, during his career.