District collector Lakshmi Bhavya Tanneeru announced that the schools in Udhagamandalam, Kundah, Coonoor and Kotagiri will be closed today.
Police said he was taken into the custody and sent to the juvenile home after the police produced him before the Juvenile Justice Board (JJB), an officer said.
An alternative high-nutrition supplement will be provided for those students who do not consume eggs because of cultural preferences, the foundation said in a statement.
Another option CBSE is exploring is a semester system involving biannual exams. Currently, the board exams for Classes 10 and 12 are conducted in February-March.
Himachal Pradesh Chief Minister Sukhvinder Singh Sukhu said that 24 teachers would be awarded under two categories.