His research interests include several areas of probability theory, Finitely additive probability measures, stochastic calculus, martingale problems and Markov processes, Filtering theory, option pricing theory, psephology in the context of Indian elections and cryptography, among others.[3]
Over the last 25 years, he has also used his statistical and mathematical understanding in various application areas- this started with Opinion poll based election prediction. Over the last two decades, he has played a role in various fields: He was consulted by the Central bureau of Investigations (CBI) in a case regarding cheating in a multiple choice examination. He has worked with Weapons & Electronics Systems Engineering Establishment (WESEE), under Ministry of Defense, Government of India on Cryptography and developed Block Ciphers for WESEE. He was engaged by Clearing Corporation of India (CCIL) during 2016-2019 to review Risk Management Models and Processes at CCIL. He was Chairman of the working group of the National Sample Survey, for the 71st Round. He was a member of the committee constituted by Election Commission (EC) of India to advise EC on the sampling scheme for EVM-VVPAT verification. The report was the basis of EC's final reply to the Supreme Court just before the 2019 parliamentary poll. He was a member of the expert committee constituted by the Supreme Court (with Justice Singhvi (Retd) as Chairman, Mr Nandan Nilkeni, Dr V. Bhatkar as members) in 2019 regarding suggesting steps to deal with fraud in online examinations.
