Dutta, a former Minister in the state, was summoned to the CGO complex here by the Special Investigation Team under Joint Director Rajiv Singh for examination in connection with the scam probe.
The sources said his role in the scam is still not clear and being examined to clarify some indications which surfaced during the probe.
The agency had searched his premises on August 28 last year and even questioned him but he was called again for clarification on some issued related to his alleged role, sources said.
Besides, there are 44 FIRs in Odisha against ponzi companies.
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The Supreme Court had handed over the Saradha chit fund scam probe to CBI and asked the state governments concerned to provide all logistical help to the CBI team investigating the matter.
CBI has formed a Special Investigating Team (SIT) headed by Joint Director Rajiv Singh to also probe the role of Securities Exchange Board of India (Sebi) and RBI.
After registering over 50 cases to probe chit fund scam scam on the directions of the Supreme Court, CBI has also been looking into the role of Sebi, authorities under the Companies Act and Reserve Bank of India (RBI).