How to control anger?

The following excerpt is from a samvaad (dialogue) session with Acharya Prashant.

Question: How to control my unjustified anger?

Acharya Prashant: If it were really unjustified according to you, it couldn’t have had any life, it couldn’t have been able to gather any momentum. It is only after a while, it is only as an after-thought, and it is only intellectually, that we call our anger as…