Prior to this, from 2002-2009, he was a researcher at the University of Tokyo, JAPAN. He received his Ph.D. in Computer Science from the School of Computing, National University of Singapore (NUS) in 2003. He had completed his Bachelor of Technology (with Honours) in Computer Science and Engineering at the Indian Institute of Technology (IIT), Kharagpur, INDIA in 1998. His research interests include data management in Peer-to-Peer environments and Mobile-Peer-to-Peer networks, business intelligence, GRID computing, spatial data management and database indexing.