I was born on November 26, 1979, in the city of Calcutta (now Kolkata), India, in a Bengali joint family. My father was a high school teacher (now retired) and my mother, a homemaker. We used to live in a big house with my grandparents, one uncle and aunt, and two cousin sisters.
I attended the Assembly of God Church School, Tollygunge, from 1984 to 1995, and St. James' School, Kolkata, from 1995 to 1997.
I was a student at the Indian Statistical Insitute, Kolkata from 1997 to 2002.
In 2002, I came to Stanford University as a graduate student in the department of statistics, where I worked under the supervision of Persi Diaconis. I finished my Ph.D. in 2005.
In 2005, I joined the department of statistics at the University of California at Berkeley as a visiting Neyman assistant professor. In 2006, I was appointed as a tenure-track assistant professor in the same department. I got tenured in 2009.
In autumn 2009, I moved to the Courant Institute of Mathematical Sciences, New York University, as a tenured associate professor of mathematics. Soon afterwards, I got married. My wife studies sociology. Interestingly, she grew up in a house that is a fifteen minute walk from my childhood home, but we did not know each other before meeting in the United States.
I spent the academic year 2012-13 as a visiting associate professor of mathematics and statistics at Stanford University. Since autumn 2013, I have joined Stanford University as a professor with joint appointments in the departments of statistics and mathematics.
Over the years I have developed some partial understanding of some aspects of probability theory. It is my main research area.