Mr Shri Prakash joined TERI in July 2011 as Distinguished Fellow, after a long career of over 37 years in Indian Railways. He superannuated as Member, Railway Board and Secretary to Government of India in December 2009. Afterwards, he was chairperson of a high-powered Committee on Infrastructure Planning, Business Development and Project Monitoring on Indian Railways.

For over 11 years he is guiding research in sustainable transport policies in Centre for Research in Sustainable Mobility in TERI. The main research areas currently pursued in the Centre is urban transport, electric mobility particularly on freight transport and smaller and intermediate passenger electric vehicles, modal shift from road to rail as India has a robust rail network, transport modelling and forecasting etc. Concurrently, he is Mentor and Director, Public Policy and Sustainable Development in TERI School of Advanced Studies. He is a Post Graduate in Mathematics with an additional degree of M.B.A.