New Delhi, April 6 -- A 31-year-old who was the alleged the mastermind of a cyber fraud syndicate involved in large-scale online investment scams, with links to international operators based in Cambodia, said police. The syndicate has duped hundreds of investors of over Rs.300 crore in four to five years. The accused, identified as Karan Kajaria, was arrested on Friday at the Kolkata airport. At least 10 members have been arrested since December, police added. DCP (crime) Aditya Gautam said that the arrests followed a probe into a case registered at the cyber police station. htc...