On the ninth day, when the conjunction of Sun and Rahu is taking place, it is believed that Pitra Dosha Yoga is being formed. According to the scriptures, in whichever house Sun and Rahu sit, all the fruits of that house are destroyed. There is a defect in a person's horoscope that has the ability to give all these sorrows together, this defect is known as Pitra Dosha.
The ninth house of the horoscope is called the house of religion, it is also the house of the father, if in some way the ninth house is affected by bad planets, then it indicates that the wishes of the ancestors were left unfulfilled, those which are naturally bad planets are called Sun Mars Saturn and do their work in some lagnas, But Rahu and Ketu give their side effects in all lagans, the ninth house, the planet the lord of the ninth house, the ninth house from the moon sign and the ninth house from the moon sign, if the owner of the ninth house is afflicted by Rahu or Ketu, then it is called Pitra Dosha.
When many problems surround a person simultaneously, then it should be understood that there is something in his birth chart that is constantly troubling him. Just as there are many Raja Yogas in the horoscope, in the same way there are many defects in the horoscope. When there is a defect in a person's birth chart, its results are very fatal. One such defect is patriarchy. The life of a person who has Pitra Dosha in his horoscope is filled with crises.