Professor Kallapur was an editor of The Accounting Review from 2008 to 2011, the first person from outside North America to be appointed to that position. He has served as an ad-hoc reviewer for almost all the major accounting journals, and is on the editorial board of the Journal of Accounting and Public Policy.
He conducts research on financial and managerial accounting, and auditing, and has published in each of the top three accounting journals. His papers have been cited over 4,500 times (Google Scholar) and in regulatory policy documents in India and the UK.
Professor Kallapur is a member of the National Financial Reporting Authority (NFRA). He is on the Board of IDBI Bank where he serves on the Risk Management and Audit Committees. He previously served on the Board of the Life Insurance Corporation of India. He was an International Council Member-at-large of the American Accounting Association from 2018 to 2021.
Professor Kallapur served as associate or deputy dean for almost a decade at ISB and has handled faculty recruitment and evaluations, promotion and tenure, and accreditations (AACSB, EQUIS, and AMBA). He started the PhD-equivalent Fellow Programme in Management at ISB, and has placed his students in faculty positions at the London School of Economics, IESEG Paris, Aalto University, University of Queensland, University of Western Australia, Rochester Insititute of Technology, and IIM Ahmedabad and Udaipur.
The American Accounting Association published his monograph on scientific inference in accounting research in its Studies in Accounting Research series.