How to ward off the evil effects of black magic?

Lord Narasimha is the most powerful God of Hindu mythology who will ward off evil effects of black magic. One has to recite Narasimha Stotra for the period of 41 days after performing daily ritual to him. Rice mixed with clarified butter should be offered to Lord Narasimha. After doing this the offered rice should be given to the affected to eat. This helps to drive away the effects of any kind of black magic. Adding to this it is better to consult psychiatrist or a psychologist as many of them mistake psychological problems as effects of black magic.