The CBI has registered a case in connection with the violence at Mathura's Jawahar Bagh park where more than 20 people, including two police officials, were killed in June 2016, during a drive to evict squatters.
The case has been registered on the directions of the Allahabad High Court.
Members of the Azad Bharat Vidhik Vaicharik Kranti Satyagrahi cult, led by Ram Vriksh Yadav, had encroached on the 270-acre Jawahar Bagh, which was government land, for two years and clashed with police when they tried to evict them.