Parents of both pupils were notified of the disciplinary processes.
"Psycho-social support has already been provided to the victim, who unfortunately sustained minor jaw injuries. This support will also be extended to the perpetrator," the department said.
Meanwhile, Gauteng education MEC Panyaza Lesufi visited Crystal Park High School where pupils were filmed beating a classmate.
In the video, taken on Wednesday last week, a defenceless girl is seen on the ground, surrounded by other female pupils who kicked and slapped her.
While she was being assaulted, other pupils laughed and encouraged her attackers.
Lesufi said he was not opposed to criminal charges being laid against the perpetrators.