Pitra Dosh Puja in Ujjain is a significant ritual aimed at resolving issues caused by ancestral debts and negative karmas. It is typically performed during Pitra Paksha or on Amavasya for maximum efficacy. The ceremony involves offerings to ancestors, including rice and black sesame seeds, along with chanting specific mantras to seek their blessings. Ujjain, home to many revered temples, offers opportunities to conduct this puja with experienced priests. It’s advisable to consult a local pandit for personalized arrangements and guidance.