According to police, the accused, who study in the same school as the victim, also video-recorded the crime on a cell phone to blackmail him.
The incident came to light after the victim registered a complaint against the accused.
"The victim and the accused boys study in the same school in a western suburb. The students, who are in the age group of 15-16 allegedly committed the crime and video recorded it on a cell phone. They threatened to upload the video on social media platforms if the victim told about it to anybody," police said.