How to curb my anger

First and foremost, I hope you have logical and legitimate reasons to dislike him. If you do, you might try to speak to your superiors about his attitude. If there is no recourse, your options are, a. Always get company of other people around you so that he is not able to find you alone to trouble you; b. Confront him in the most polite way in front of others, asking him directly, "what's your problem? Why do you behave like this with me?" This would be my choice. c. Develop a way to completely ignore him, or ignore him when he wants to hurt you. Like when he is not into professional talk, walk away or hail somebody, which is insulting, and therefore risky as well, if the guy is having a wrong attitude towards you. d. Ignore him. This is not going to help you in the long run, because there is no defense displayed. e. Change the job. Mind you in the new environment you might again find some people like that. How many jobs can you change? Killing is not an option.