A video showing a teacher from the education platform ‘Physics Wallah’ went viral after he mocked a female student for posting about K-pop group BTS during an online class. The enraged teacher threatened the student saying “If you were not a girl then I would have grabbed your collar and slapped you.” He went on to make harsh comments about the boyband. 

The viral clip met with severe backlash and the teacher took to Instagram account to post an apology.