He received a B.Tech in Computer Science and Engg. From the Indian Institute of Technology, Delhi in 1996 and Masters in 1998 respectively. He was nominated for outstanding PhD award by Electrical and Computer Engg. The National University of Singapore in 2001. Dr. Mittal was a faculty member in the Department of Computer Science, National University of Singapore for two years. He has alo worked as an associate professor at IIT-Roorkee for seven years. He has contributed more than 240 research papers in journals and conferences of high repute with significant impact factor, many of which are in IEEE transactions, Springer and Elsevier journals. He is also a co-author of two international books. He has guided 9 Ph.D. thesis, 30 M.Tech thesis and 20 B.Tech. thesis at The National University of Singapore and IIT Roorkee.
He is recipient of several National and International awards including the Young Scientist Award from the National Academy of Sciences India (NASI), Indian Science Congress Association (ISCA) young scientist award, Outstanding teacher award at IIT Roorkee and IBM faculty award of US$10,000. He has a keen interest to facilitate publication , grants, and research aptitude of faculty and students. He is serving as the Director (Research) at GEU, Dehradun.