Professor Varshney has two broad areas of current research. The first deals with fusion of information from a variety of heterogeneous sources, and the second area deals with cognitive networks where network throughput is to be maximized via active sensing and control under a number of system constraints. Professor Varshney also leads the Sensor Fusion Lab in the College of Engineering and Computer Science, where he is currently working with a group of students on drone use research.

Varshney also serves as an Adjunct Professor for the Department of Radiology at Upstate Universiry. He received his Ph.D. in electrical engineering from the University of Illinois at Urbana-Champaign.