Pitra Dosha is the karmic debt of the ancestors which is to be paid by the person with this dosha. It is formed in the horoscope of an individual depending on the kind of mistake, sins and crime the forefathers have made. The person has to go through paying all the karmic debt for his entire life. He has to go through punishment until the debt is paid or cleared. The person is also destined to suffer illness and bad luck.