2002, BSc, Bangladesh University of Engineering and Technology; 2005, Master's and 2007, PhD, Massachusetts Institute of Technology. Recipient of honours and awards: Honourable Mention, Eric Pas Dissertation Award, International Association of Travel Behaviour Research; Martin Family Society for Sustainability Fellowship; MIT Presidential Fellowship; MIT Malik Hossain Gold Medal for Excellence in Undergraduate Program; FR Khan Scholarship for Academic Excellence; Award for Merit by the Prime Minister, People's Republic of Bangladesh. Research interests: demand modelling and discrete choice analysis, traffic simulation, public transportation, sustainable transport and energy systems, transportation in developing countries.