Dear Anaszina,
A place where a good numbered people from different background (Caste, creed, colour, territory and language) assembled at one point of time is to be affected or tainted, may this be our workplace. There are several laws, rules, policing and acts have been enacted, to keep the workplace in order of discipline.
The bullying in workplace is nothing but nuisance [use of force, threat, or coercion to abuse, intimidate, or aggressively dominate others] by the employees. The behaviour is often repeated and habitual by the employees. The above is considered as misconduct and this must be stopped immediately before it spreads and goes vicious.
In the instant case the management immediately come out with a CIRCULAR that anybody found involved in bullying at work place shall be treated severely. Issue show cause/warning letter.