India, April 6 -- The Delhi Police crime branch on Sunday said it arrested a 31-year-old alleged mastermind of a cyber fraud syndicate involved in large-scale online investment scams,with links to international operators based in Cambodia.

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 April 3 after being intercepted at the Kolkata airport. Police said a look out circular (LOC) was issued against him.

At least 10 other members of the syndicate have been arrested since December, police added.

Deputy commissioner of police (crime) Aditya Gautam said that the arrests followed an investigation into a case registered at the cyber police stat...