[1] Choudhury served as the Director of National Security Guard (NSG), India from 22 January 2014 to 31 May 2015.

[2][3][4][5][6] Post retirement from the National Security Guard, the GAIL(India) Limited appointed Jayanto Narayan Choudhury as the company's Independent Director.

[8] Choudhury's father was an Indian Army jawan, and so he had to travel several places in his childhood along with his family.

[9] Choudhury, a 1978 batch Assam-Meghalaya cadre IPS, worked in various departments in different capacities at the national level.

Choudhury assumed the charge of the Director General of Police of Assam on the very first day of 2012.