Pitra Dosh Nivaran Puja is a sacred Hindu ritual performed to pacify and honor ancestors (Pitras) and remove the negative effects of ancestral karmic imbalance. It is usually done during auspicious periods like Pitru Paksha or Amavasya, especially at holy places such as Gaya, Varanasi, or riverbanks. The puja includes rituals like Tarpan, Shraddha, and Pind Daan, aiming to bring peace to departed souls and blessings, prosperity, and harmony to the family.