Remember, success in chanting any mantra is achieved only when there is full devotion and faith in your mantra chanting, favorite deity, and mantra. By chanting this mantra, communication of such power starts in you, due to which you can get rid of ghosts and other people who are suffering from other evil forces.
If you start chanting this mantra according to your faith, belief, and rules, then very soon you will start feeling the blessings of Hanuman Ji in the midst of chanting the mantra.