He was also a P. K. Kelkar Research Fellow in the same department from 2009-2012. His current areas of research interest include multi-media signal processing, multi-microphone speech processing, pervasive multimedia computing, ICT for socially relevant applications in the Indian context, and applications of signal processing in wireless networks with specific focus on emergency response and transportation applications. He has also worked on NSF funded projects on ICT and mobile applications at the University Of California San Diego, USA, where he was a researcher and lecturer in the Department of Electrical and Computer Engineering between 2005–2008. He is also a member of the National working group of ITU-T (NWG-16) on developing multimedia applications.