He received his Ph.D. degree in Computer Science and Engineering from Indian Institute of Technology Kharagpur. He has received his M.Sc. in Computer and Information Science and M. Tech in Computer Science and Engineering, both from Department of Computer Science and Engineering, University of Calcutta. Dr. Sur received Institute Scholarship (IIT Kharagpur) and Infosys Scholarship for his PhD study. He also got Microsoft Outstanding Young Faculty Programme Award at Dept. of CSE, IIT Guwahati. He has published more than 25 peer reviewed international & national conference and journal papers and has been successful in securing number of project grants on multimedia security. His research interests include Multimedia Security e.g., Image and Video Watermarking, Reversible Data Hiding; Steganography & Steganalysis for Image and Video; and Scalable Video Streaming.