the CBI has summoned two businessmen Sajjan Agarwal and his son, Sandhir Agarwal who Sen named in a purported letter.
Justice Shyamal Sen said the Saradha CMD had been given enough opportunities to defend himself.
ED has already questioned TMC MP Kunal Ghosh and actor-turned TMC MP Mithun Chakraborty in connection with case.
Actor was editor of magazine launched by group, received Rs 75 lakh pay for 11 months.
Enforcement Directorate is also expected to confront Sen with some documents they seized during the investigation earlier.
The searches were carried out also at the residence of TV serial producer Priti Bhatia and stock broker Deepak Parekh .
In raids at 28 locations across four states, residences of ex-Union minister Matang Sinh, his former wife also searched.
There are four FIRs against Saradha Group in which it is alleged that thousands of investors were allegedly duped by the company officials.
The meeting was held to find out areas where we can co-operate with each other.
CBI registered 46 FIRs in a day in the Saradha scam and named suspended TMC MP Kunal Ghosh as one of the accused.
The sources said searches have also taken place at 10 locations in West Bengal.
CBI carry out search operations in 30 locations and recover Rs 28 lakh from BJD MP’s home in Odisha.
The Supreme Court had on May 9 ordered a CBI probe into the chit fund scam in West Bengal, Odisha and Assam.
ED probes into money laundering aspect, CBI has filed a chargesheet in case.
The central agency had requested for 10 days custody of the accused, but the court granted a week.