"Mohanty was taken into custody by the human rights cell of the state police department. He is likely to be produced in court later in the day," a police official told IANS.
Mohanty has been accused of torturing Barsa Swony Choudhury for dowry ever since he married to her June 2012.
In her complaint filed at the police station in the district headquarters town of Balasore, about 220 km from here, Choudhury alleged that her parents had given Rs.10 lakh as dowry at the time of the marriage, as was demanded. But her father-in-law, husband and the rest of the family members insisted that her parents should pay Rs.25 lakh and a multi-utility vehicle.
The allegation forced her father-in-law Raghunath Mohanty, a five-time legislator from the Basta assembly constituency in Balasore district, resign from the state cabinet Friday. He was holding the portfolios of housing and urban development, law, and information technology.
The incidents had triggered state-wide protests with opposition parties demanding the arrest of the minister and his family members.