Babu will be produced before CBI special judge here tomorrow, CBI officials said after the arrest, that followed his questioning.
The illegal export from Belekeri port in Uttara Kannada district was exposed by former Karnataka Lokayukta N Santosh Hegde, who in his report, had said 7.74 million tonnes of iron ore were illegally exported between 2006-2007 and 2010-11, causing huge loss to the exchequer.
Babu is a nephew of Sriramulu, a close associate of former minister and mining baron G Janardhana Reddy, lodged in Chanchalguda jail in Hyderabad in connection with an alleged mining scam.