A two-member team of the State Crime Branch (CB) arrived at Kashipur in Rayagada district on Tuesday to investigate the attack on Utkal Bharat chief and former MP Kharabela Swain.
The team led by Inspector Saroj Mohanty reached the Kashipur police station to interrogate the two youths, Sumanta Nayak and P Govinda Rao, who were arrested on Monday in connection with the incident.
Sources said the investigating officials would quiz the two accused about the reason and who directed them to attack the former Baleswar MP.
Swain was misbehaved and later thrashed by a youth while he was addressing a public meeting at Kashipur on November 24. The incident came to the fore after Swain uploaded a video of the incident on his Facebook profile.