Pitra Dosh, or Pitra Dosha, is a significant astrological and spiritual concept in Vedic astrology. It is believed to occur due to the unfavorable positioning of ancestors' spirits or unresolved karmic debts from past lives. This Dosha can cause various issues in an individual's life, such as health problems, financial difficulties, and obstacles in personal and professional life. The Pitra Dosh Pooja is a ritual performed to mitigate the effects of this Dosha and to appease the ancestors' souls.