New Delhi, Aug. 6 -- A professor of Indian-origin at the University of California, San Diego (UCSD) has come under investigation after a video allegedly showing him being confronted in an online child predator sting went viral. The man in question, Nisarg Jaydeep Shah, is an associate professor specialising in immunoengineering and nanoscale materials, with academic credentials from MIT and Harvard, San Diego Ville reported.

The incident came to light after a video posted by a California-based vigilante group called People vs. Predators began circulating widely on social media. The group claims to expose online child predators by posing as underage individuals on dating apps.

In the video, activist Tim Johnson, who claims to have expose...