Statistical Investigator, Government of India, New Delhi, 1957-61
	Assistant Professor, University of California, Berkeley, CA, 1964-65
	Assistant Professor, Indian Institute of Management, Ahmedabad, India, 1966-67
	Assistant Professor, Carnegie-Mellon University, Pittsburgh, PA, 1967-69
	Associate Professor of Statistics and Industrial Administration, Carnegie-Mellon University, Pittsburgh, PA, 1969-71
	Visiting Professor, Department of Mathematics, University of Maryland, College Park, MD, 1977-78
	Professor, Production and Quantitative Methods Area, Indian Institute of Management, Ahmedabad, 1971-1987
	Dean, Indian Institute of Management, Ahmedabad, 1978-1981
	Visiting Professor, Department of Statistics, Wharton School, University of Pennsylvania, Philadelphia, PA, 1984-87
	Visiting Professor, Indian Institute of Management, Bangalore, India, January-June, 1995
	Visiting Professor, Indian Statistical Institute, Bangalore, India, May-June, 1995
	Visiting Professor, Indian Institute of Technology, Madras, India, July-August, 1998