In a coordinated action, CBI carried out searches at 14 locations in the state in which the premises of former Health Minister Himanta Biswa Sarma and former Transport Minister Anjan Dutta were searched, sources said.
Sarma had been a powerful minister in Tarun Gogoi cabinet since 2001 but was sacked by the Chief Minister last month after he led a campaign for leadership change. Dutta is considered a Gogoi loyalist who handled important porfolios like transport.
The search operation was spread across 14 places in Assam seven in Kolkata and one in Mumbai in connection with the scam.
In Kolkata, the premises of one Bapi Karim, who was a personal assistant to a minister, industrialists Sajjan and Sandhir Agarwal, a former IPS officer Deben Biswas and one Asif Khan were searched.
There are four FIRs against Saradha Group in which it is alleged that thousands of investors were duped by the company officials and their associates who swindled their deposits. Besides, there are 44 FIRs in Odisha against ponzi companies.