In the first case, the agency's Kolkata zonal office, under which Odisha falls, issued orders attaching assets worth Rs 400 crore of three firms, their owners and associates in the Uliburu mining scam case which was also probed by Justice (retd) M B Shah Commission for alleged financial irregularities and corruption.
The agency, sources said, attached a number of immovable and movable assets of the accused firms in the case like Ms Deepak Steel, Ms Deepak Steel and Power and Ms Sneh Pushp and their directors like Deepak Kumar, Champak Gupta and Haricharan Gupta and a few others.
The case pertains to Uliburu mines area located in Joda mining circle in Keonjhar district of the state where largescale alleged irregularities were detected by the state mines department a few years back.
Justice Shah Commission, which probed a number of mining scam cases in Odisha and Goa, had termed this particular case as "one of the biggest illegal minings ever" and recommended a CBI probe into the matter.
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The agency had also arrested two persons in this case-- prime accused Deepak Gupta and his associate S Rout.
The Special Investigation Team (SIT) on black money had been reviewing the case for appropriate action to be taken by probe agencies like ED.
Odisha Vigilance department earlier had filed a charge sheet in this case against 23 persons and 2 firms in a special court in Keonjhar.
Deepak Gupta, the power of attorney holder of Uliburu mines in Odisha's Keonjhar district, was charged by the Vigilance with having raised ore from the reserve forest area adjacent to the mines by shifting the lease boundary.
The scam is estimated worth Rs 1,000 crore.
The second case relates to the Rs 400 crore Artha Tatwa group chitfund scam in the state, where the agency attached Rs 85 crore assets of prime accused Pradeep Sethi and few others.
"The assets attached include both movable and immovable properties including some cash," sources added.