Police added that Rs 1 crore in demonetised notes was recovered from the arrested persons.
A police release stated that businessman Kallam Rajesh (45) was unable to exchange the demonetised currency during the time such an exchange window was being operated by the authorities.
He then approached another businessman Palamkula Anantha Reddy seeking help in exchanging the demonetised currency, police said.
Police said that Rajesh, Reddy and one Ashangari Nagaraju conspired to exchange the old notes for new notes worth 20 per cent of the former's value.
A case has been registered and further investigations were underway, police added.