Currently Chairman, International Tax Research and Analysis Foundation (ITRAF), India, website: www.itraf.org.
Member, Academic Board, Advanced Diploma for International Taxation (ADIT), Chartered Institute of Taxation (CIOT), London.
Member, Board of Directors, International Tax and Investment Center (ITIC), Washington DC.
His publications in peer reviewed journals include Journal of Economic Theory (United States), Journal of Public Economics (Netherlands), IMF Staff Papers, National Tax Journal (US), Oxford Economic Papers (UK), Oxford Review of Economic Policy (UK), Public Finance (Europe), Public Finance Quarterly (US), and several other international and national journals. His edited and own books are from Business Standard Publishers, Cambridge University Press, CenTax, International Monetary Fund, Lexis Nexis, Oakbridge, Orient Blackswan, Oxford University Press, Routledge, Springer, and Wolters Kluwer. He writes a monthly column in Business Standard, an Indian business daily where he writes on fiscal policy, taxation, political economy and socio-economic issues. He participates in numerous international conferences, seminars and policy discussions.
Previously American University, Washington DC (1975-83) where he became to be tenured Professor.
International Monetary Fund (1983-2004): Senior Economist in the Office of the Managing Director (1987-88), Chief of Tax Policy (1992-95) and Director (Ambassador), IMF Singapore Institute (2001-03).
Provided technical assistance in the fiscal field to more than thirty countries in Africa (including Botswana, Rwanda, South Africa), Asia (including Bangladesh, China, Kazakhstan, Myanmar, Nepal, Sri Lanka, Thailand, Turkey), Europe (including Andorra, Hungary, Romania), and Latin America (including Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, Dominican Republic, Ecuador, Guatemala, Guyana, Nicaragua, Paraguay, Peru, Venezuela).
Chief Economist, HMRC, Her Majesty’s Revenue and Customs (HMRC), United Kingdom (2008-11).
Served in several official capacities in India including Chairman, Tax Administration Reform Commission (TARC), Government of India, (2013-15); Adviser (Minister of State) to the Indian Finance Minister, (2013-14); and Secretary (2004-08).
Director, International Council for Research on International Economic Relations (ICRIER) (2011-13) and as Director, National Institute of Public Finance and Policy (NIPFP) (1995-97), two premier research and policy development institutions in New Delhi, India.
Received the highest civilian honour of Brazil, Commander of the Order of the Southern Cross in 2000, for contributions to Brazilian tax reform. He was among the 2012, 2013 and 2015 Global Tax 50 of the International Tax Review, “individuals and organisations that made a substantial impact on tax practice and administration in the past 12 months”. He has many books and publications in international journals and has given speeches in his professional field across the globe.
Ph.D. Southern Methodist University, Dallas (1975). He received the Jeanne S. Mattersdorf Award of the National Tax Association of America as “an outstanding student in the field of taxation and public finance” for his Ph.D. thesis on the incidence of the corporation income tax. His Masters degrees are from the University of Rochester (1973) and Delhi School of Economics (1972), Bachelors (Hons.) degree from Presidency College, Calcutta University (1970), and High School Matriculation from Madras University (1966).