Kolkata: Chit fund company Saradha group's chief Sudipta Sen was on Thursday sent to 9-day police custody, along with two of his close aides - Debjani Mukherjee and Arvind Singh Chouhan.
The Bidhan Nagar police had sought a 14-day extension of their custody.
The Saradha group allegedly duped lakhs of investors in a chit fund scheme. The police have unearthed 254 bank accounts and close to 200 properties of the ponzi scamster.
Meanwhile, Left leaders plan to meet President Pranab Mukherjee and Prime Minister Manmohan Singh on Thursday to demand a CBI probe into the scam.