According to the scriptures of our Sanatan Dharma, Pitru Dosh Puja is done because this dosha arises due to unrest of the soul of ancestors in the birth chart or due to incomplete deeds. Pitru Dosh can cause obstacles in life, problems related to children, financial crisis and mental stress. https://kaalsarpdoshpujanguruji.com/pitra-dosh-puja-ujjain/