New Delhi, March 13 -- The Central Bureau of Investigation (CBI) has questioned Jai Ambani, son of industrialist Anil Ambani, in connection with an ongoing probe into a transnational online investment and part-time job fraud case linked to the Dubai-based fintech platform Pyypl, sources said.

The case pertains to a large-scale organised cyber fraud in which thousands of unsuspecting Indian citizens were allegedly cheated of crores of rupees through deceptive online investment schemes and part-time job offers operated by an organised transnational syndicate.

According to officials, the case was registered by the CBI based on inputs received from the Indian Cyber Crime Coordination Centre (I4C) under the Ministry of Home Affairs.

As part...