Wing Commander Lele has joined the Institute of Defence and Strategic Analyses (IDSA) in September 2001. He is currently a Senior Fellow with Institute for Defence Studies and Analyses (IDSA), New Delhi. His research interests include Weapons of Mass Destruction (WMD), Space Security and Strategic Technologies, and . He is a post graduate in Physics as well as Defence and Strategic Studies.
He has obtained PhD from Jawaharlal Nehru University, New Delhi. He has authored two books titled Bio-Weapons: The Genie in the Bottle (2004) and Weather and Warfare (2006). He has also contributed articles to reputed journals, websites and newspapers.