2007 - present: Professor Emeritus, Jawaharlal Nehru University, New Delhi, India.
Visting Professor, Council for Social Development, New Delhi, India.
2003 - present: Distinguished Professor of Economics 'Professor of Clear Fame', Pavia University, Italy.
1995-2001. Rejoined at the invitation of the-then vice chancellor as professor of economics, Jawaharlal Nehru University,
New Delhi, India.
2002. Senior Fellow. Institute of Advanced Studies, Bolognia University, Italy.
2000. Adjunct professor in Norwegian University of Science and Technology (NTNU), Trondheim, Norway.
1997,Spring: Fellow, Swedish Collegium for Advanced Study in the Social Sciences.
1994-95. Fellow,Wissenschaftskolleg zu Berlin (Institute for Advanced Studies, Berlin).
1993-94. Visiting Professor, University of Bremen, Germany and University of Trondheim, Norway.
1989-92. Professor of Economics, Indian Institute of Management, Calcutta, India.
1990. Invited Fellow of the Norwegian Council of Sciences.
1988. Visiting Professor, University of Bologna, Italy.
1987. Visiting Professor, University of Vienna and Linz Austria
1986. Visiting Professor, Stanford University, U.S.A.
1983-85. Professor, EL Collegio de Mexico, Mexico.
1973-1982. Professor, Centre for Economic Studies and Planning, Jawaharlal Nehru University.
1972. Fellow, Centre for Development Studies, Trivandrum, India.
1971. Research Officer, United Nations Industrial Development Organization, Vienna.
1969. U.N. Economic expert in Multi-sector Computer Models working in the Ministry of Finance,
United Nations Development Programme (UNDP), Colombo, Sri Lanka.
1968. Reader (Associate Professor), Delhi School of Economics, University of Delhi, India.
1966. Assistant Director of Studies, Pembroke College, Cambridge.
1963. Professor of Economics(Temporary), Presidency College, Calcutta, India.
Visting Professor, Council for Social Development, New Delhi, India.
2003 - present: Distinguished Professor of Economics 'Professor of Clear Fame', Pavia University, Italy.
1995-2001. Rejoined at the invitation of the-then vice chancellor as professor of economics, Jawaharlal Nehru University,
New Delhi, India.
2002. Senior Fellow. Institute of Advanced Studies, Bolognia University, Italy.
2000. Adjunct professor in Norwegian University of Science and Technology (NTNU), Trondheim, Norway.
1997,Spring: Fellow, Swedish Collegium for Advanced Study in the Social Sciences.
1994-95. Fellow,Wissenschaftskolleg zu Berlin (Institute for Advanced Studies, Berlin).
1993-94. Visiting Professor, University of Bremen, Germany and University of Trondheim, Norway.
1989-92. Professor of Economics, Indian Institute of Management, Calcutta, India.
1990. Invited Fellow of the Norwegian Council of Sciences.
1988. Visiting Professor, University of Bologna, Italy.
1987. Visiting Professor, University of Vienna and Linz Austria
1986. Visiting Professor, Stanford University, U.S.A.
1983-85. Professor, EL Collegio de Mexico, Mexico.
1973-1982. Professor, Centre for Economic Studies and Planning, Jawaharlal Nehru University.
1972. Fellow, Centre for Development Studies, Trivandrum, India.
1971. Research Officer, United Nations Industrial Development Organization, Vienna.
1969. U.N. Economic expert in Multi-sector Computer Models working in the Ministry of Finance,
United Nations Development Programme (UNDP), Colombo, Sri Lanka.
1968. Reader (Associate Professor), Delhi School of Economics, University of Delhi, India.
1966. Assistant Director of Studies, Pembroke College, Cambridge.
1963. Professor of Economics(Temporary), Presidency College, Calcutta, India.