The headmaster of a primary school in Odisha’s Ganjam district was attacked and injured by an intruder on Tuesday during a cleaning exercise on the premises.The headmaster, Purna Chandra Das, was admitted to MKCG Medical College and Hospital in Berhampur. The incident happened at Gangadhar Primary School in Kavisuryanagar. The intruder, a youth in early 20s, was angry as the headmaster had engaged the school students in cleaning their classrooms, said sources. It is to be noted that Gangadhar Primary School has been adjudged the best school for cleanliness in Kavisuryanagar Notified Area Council. The headmaster, according to the sources, had asked two Class V students to clean their classroom. The accused saw this from outside and entered the campus to record it on his cell phone. He protested against students being used for cleaning work and entered into an altercation with the headmaster. He hit Mr. Das’s head with a boulder, injuring him seriously, the sources added. The headmaster has lodged a complaint at Kavisuryanagar police station but the culprit is yet to be arrested.Ganjam District Education Officer Sanatan Panda condemned the violent act and said that if the youth had any complaints he could have conveyed them to the authorities instead of taking the law into his own hands.“Under the ‘Swachh Vidyalaya’ drive going on in the district, students and teachers together clean their school campuses.