Professor Singh is the William and Phyllis Mack Professor of Management and Co-director of Wharton's Mack Centre for Technological Innovation. He has been the Chair of the Management Department at The Wharton School. He has been a visiting faculty member at London Business School, Bocconi University, Milan, the University of St. Gallen Switzerland, and the Indian School of Business. His teaching interests include the development of competitive advantage and management acquisitions and alliances. He is the Academic Director for several of Wharton's open enrollment executive programmes. His research focuses on effective strategies for managing acquisitions and alliances, and on the consequences of corporate restructuring. He has won awards for outstanding research in strategic management at the Academy of Management and The Wharton School's Miller-Sherrard Core Teaching Award.

Professor Singh edited a special issue of the Strategic Management Journal on corporate restructuring and a book entitled The Management of Corporate Acquisitions. He won the Academy of International Business Decade Award for his work, along with Professor Bruce Kogut, on determinants of modes of entry by multinational firms into new country markets. He serves on the editorial boards of several prestigious publications and has extensive experience in working with senior executive audiences in the US and India.

Professor Singh has conducted executive seminars on competitive advantage, acquisitions and alliances for Parke-Davis (now part of Pfizer), IBM Corporation, Verizon and the Aditya Birla Group. He is a leading researcher on strategic alliances and strategies for corporate renewal, including path breaking projects on managing acquisitions and alliances and post-acquisition management. He has consulted for companies such as Bell Atlantic, IBM, Merck, and AT&T.