NEW DELHI: A 17-year-old boy was stabbed multiple times when he intervened in a fight between his tuition teacher and two brothers, one of whom is a juvenile, in south Delhi’s Sangam Vihar on Monday.The accused, Shishpal (25), a local resident, has been arrested and his younger brother has also been apprehended. The injured student is undergoing treatment.Police said the two suspects often used to stand and abuse passersby outside the tuition centre run by AD Mahesh for students from class I to XII. On Monday, locals told cops, the duo started creating ruckus when tuitions were on.“When Mahesh objected, they picked a fight with him. As the argument grew violent, one of Mahesh’s students intervened. The argument turned nasty and Shishpal’s younger brother gave him a knife, with which he stabbed the student multiple times on his head. As the student fell unconscious, bleeding profusely, the brothers fled to their house,” said a senior police officer.Locals told police that when they tried to chase the duo, they escaped and started raining bricks and stones on them from the terrace to keep them away from their house.The matter was reported to the police around 8.30pm. A police team reached the spot and the student was rushed to Majeedia Hospital, from where he was referred to AIIMS Trauma Centre.“A police team caught hold of the duo at their house. The knife used in the offence has also been recovered. They have been booked for attempt to murder and under other relevant sections of the Indian Penal Code. A case has been registered at Sangam Vihar police station and further investigation is on,” the officer added.