What Pitra Dosha is
In Hindu tradition, the pitrs are departed ancestors, and honouring them through rites such as Shraddha and Tarpan is a duty. Pitra Dosha is the astrological idea that the chart can show disturbance related to ancestors, usually through the Sun, which signifies the father and lineage, and the 9th house, which signifies the father, dharma and inherited fortune.
Brihat Parashara Hora Shastra discusses pitri shapa, a curse or debt linked to ancestors, in connection with afflictions to the 5th house and related significators. The modern term Pitra Dosha draws on this theme, and different astrologers define it with different combinations.
