His research interests include spatio-temporal data analytics, graph indexing and mining, and bioinformatics. Prior to joining IIT Delhi, he spent close to three years as an Assistant Professor at IIT Madras and a year and half in the role of a Research Scientist at IBM Research. He obtained his PhD from the Department of Computer Science, University of California, Santa Barbara (UCSB) in March 2012. He has published more than 28 papers including in premier data-mining conferences such as SIGMOD, VLDB, KDD, ICDM, and WWW. He received the Best Paper Award at the International Conference on Web Information Systems Engineering (WISE), 2016 and Most Reproducible Paper Award in SIGMOD 2018. Sayan regularly serves in the program committees and review panels of prestigious conferences and journals including KDD, SDM, WWW, ICDM, TKDE, and VLDB Journal.