"Several inquiries are going on and the most important is how we can give some money back to the investors," Narayanan told reporters when asked whether a CBI probe was required into the scam, which has hit thousands of investors in the state.
Opposition parties have demanded a CBI inquiry into the Saradha Group alleging involvement of ruling Trinamool Congress MPs.
Asked whether he thought the Rs 500 crore relief package announced by the state government was enough to help investors, the governor said "Not enough, but it is a major effort.