In June 2015 Roy was removed from his post of director of ISI, just one month before the end of his appointment.[4] This action was harshly criticised by the international academic community.[5]
Currently, he is working on Combinatorics, and application of Statistics in Cryptology and Design of Experiments.[6]
In 2015, Roy was awarded Padma Shri, India's fourth-highest civilian honour, recognizing his accomplishments and contribution to education. In 2019, Roy was appointed as the chairperson of the National Statistical Commission, Ministry of Statistics and Programme Implementation, Government of India.[7][8]
^"ASU Faculty List". Indian Statistical Institute. Retrieved 12 February 2012.
^"Ph.D. Recipients". Combinatorics and Optimization Unit, University of Waterloo. Archived from the original on 3 January 2012. Retrieved 12 February 2012.