Families experiencing persistent problems believed to be caused by Pitru Dosha stemming from an ancestor’s unnatural death should perform this puja. Typically, the eldest son or a male descendant performs the main rites. However, any family member (male or female, though some traditions state women cannot perform it independently) whose ancestor suffered such a death can initiate or participate. It’s undertaken for those facing issues like delays in marriage/childbirth, financial instability, chronic illness, or recurring negative events.