The incident took place last evening at Chandera Kala was returning home, Superintendent of Police Alok Priyadershi said.
Political enmity is suspected to be the reason behind the incident, he said.
Seven persons --Shiv Kumar, Baburam, Pankaj, Nitin, Chaman, Pradeep, Mithan-- have been booked in this connection, Circle Officer SP Shatma said, adding the efforts are on to nab them.