The prime accused in the Mathura violence case Chandan Bose and his wife were arrested from a village in Parsurampur area on Wednesday, police said.
Chandan Bose, stated to be the second in command of Ram Vriksh Yadav, was arrested by a police team of Mathura from Caithwalia village, superintendent of police Kripa Shankar Singh said.
Ram Vriksh Yadav, the alleged leader of Azad Bharat Vidhik Vaicharik Kranti Satyagrahi, which was said to be behind the violence, had died in the clashes with police.
The police officer said both of them will be sent to Mathura.
Additional director general (law and order) of Uttar Pradesh Police Daljeet Singh had earlier said that Ram Vriksh Yadav, Chandan Bose, Girish Yadav and Rakesh Gupta are the main culprits in the case.
Twenty-nine people, including then SP (city) Mukul Dwivedi and Farah station house officer (Farah) Santosh Yadav, were killed during clashes between police and encroachers at Jawahar Bagh in Mathura on June 2.