Siva Athreya is Professor at the International Centre for Theoretical Sciences, Bengaluru, Karnataka, India and the Indian Statistical Institute, Bangalore Centre, Bengaluru, India. His primary field of interest has been in stochastic analysis. He also has worked closely with models that arise from statistical physics, population biology and recently with random walks on random graphs. he also has worked extensively in the last three years on computational epidemiology. He has worked with the Government of Karnataka assisting the T.A.C. on COVID-19 and the Department of Health and Family Welfare services in the field of public health. Abhay G. Bhatt is Professor, at the Theoretical Statistics and Mathematics Unit at the Indian Statistical Institute, Delhi Centre, India. His primary field of interest is in the area of probability theory and stochastic processes. He has worked extensively on problems in filtering theory, controlled Markov processes and Markov processes characterized via martingale problems,   B.V. Rao is Adjunct Professor at the Chennai Mathematical Institute, Chennai, Tamil Nadu, India. His primary field of interest is in the area of probability theory and stochastic processes. He has worked on problems arising in measure and integration, general topology and set theory.