Pitra Dosh Pooja is performed by a person born under the ninth house where Sun and Rahu combine. This Dosha occurs in the horoscope of someone whose ancestors did not find peace due to religious ceremonies at the time of death. Pitra Dosh is a very critical part of the Indian astrology and it should be fixed as soon as possible. It usually happens when the ancestors find it hard to overcome free from their earthly bonds, which contributes to hardships. If the pitras are happy with their commitment, they will definitely clear the way to peace and success.
Kaalsarp Yog is the effect of the wrong actions in the past life of a person or the wrong actions in his horoscope. When there are seven planets inside the horoscope between Rahu and Ketu, Kalsarp Dosh is formed. This person has to constantly face financial and physical issues. He suffers from multiple illnesses as well. The work performed creates unnecessary barriers. In life, such a person has a lot of ups and downs, so he loses his confidence. To reduce the impact of Kalsarp Yog, it is advisable to worship Lord Shiva.
In the Indian Hindu tradition, three types of debts are recognised. These are Pitru runa (Predecessors' Debt), Rushi runa (Saints' Debt), and Paramatma runa runa (Debt of God). If a man performs pooja (worship) and fasting, etc as told by our dharma shastras, he gets Permatma Runa's relief. The man gets relief from Pitru Runa by doing shraddha, pitru pujan, etc. All kinds of Yadnya, Shraddha, Tarpan etc are expected to perform by Bramhins. Apart from memory day, it can be performed on a regular basis every day. Kamya Shraddha is also referred to as Tripindi Shraddha. The soul of the deceased person, whose Shraddha has not been consistently performed for a span of 3 years, becomes Pret (Just like a Ghost). Amavas is Pitaras' day. Shraddha ought to be done on this day.
Narayan Nagbali is a Hindu ritual performed at Trimbakeshwar over three days. Two separate rituals consist of Narayan Nagbali. Narayan bali is done to get rid of Pitru dosh while secondly, Nag bali is done by killing snake, Cobra that is worshipped in India, to get rid of sin. Only in Trimbakeshwar Nashik District can it be done (Maharashtra). By having Narayan Bali Pooja performed, one can satisfy the deceased souls' unfulfilled worldly desires, which may disturb the descendants or relatives. A funeral in which an artificial body of wheat flour is used is identical to Narayan Bali Poojan. Souls that have an aspiration to avoid in this world are called out with the use of Mantras. Through the rites, the body made with wheat flour can be possessed and the funeral frees them to the other world. Nag Bali, similarly, helps the former to get rid of their sins.