Gurugram, Feb. 13 -- The principal of a private school, along with two female teachers and a male teacher, has been booked for allegedly assaulting a Class 8 student and his mother inside the school premises in Bhondsi last month, police said on Thursday, adding that the student sustained grievous injuries, according to his medico-legal report. Police said the incident took place on January 28 and the mother filed a complaint at Bhondsi police station on Wednesday. An FIR was registered against the school authorities under sections 3(5) (common intention), 115(2) (voluntarily causing hurt), and 117(2) (voluntarily causing grievous hurt) of Bhatariya Nyaya Sanhita the same day, police said. School officials were reportedly angered by the student's alleged Instagram chat with a classmate, in which he is said to have verbally abused them. The 12-year-old has also been accused of stealing food from the school canteen, said police. The school authorities, however, said that the woman inflicted the injuries on the child herself after taking him out of the school premises. Police said the mother alleged in the FIR that she received a phone call from the school at 9.20am on January 28, asking her to pick the boy as he had hurt himself. However, she realised that her son had been assaulted by school officials. "The woman principal first hurled abuses at me and then, along with two female teachers, assaulted me in a closed room," the mother alleged. Vice-principal of the school, Anurag Yadav, claimed: "The woman and her son left the school premises safely. The 12-year-old, along with three other students, had stolen eatables from the canteen. We also have the screenshots of the Instagram chats in which he had abused the principal and teachers." Sandeep Turan, Gurugram police public relations officer, said investigation in the case was ongoing, and action against the accused persons will be taken on the basis of evidence. "The school has been asked to share CCTV footage," he said....