According to the sources, on Sunday at around 10 pm, Shani Doimari saw three youth uriting on the altar of the martyrs of Dhekuajuli AASU near Peramount Hotel. Doimari asked them not to do so in the future. Instead of accepting their fault, the youths allegedly started arguing. When it appeared to Doimari that the situation was going out of hand, he called up members of AASU and Jatiyatabadi Juba Chatra Parishad. At that point, the three youth started assaulting Doimari, injuring him in the process. Later, on reaching the spot, members of AASU and Jatiyatabadi Juba Chatra Parishad rescued Doimari and proceeded to the police station where they filed a complaint and then took Doimari to the hospital for treatment, sources said.