To perform Taddinam:

1. Choose an auspicious date for the ceremony, preferably during the Pitru Paksha period or the death anniversary of the ancestor.
2. Create a sacred space or altar where the rituals will take place.
3. Gather necessary items such as cooked rice, fruits, sweets, water, flowers, incense, and lamps.
4. Begin by invoking the blessings of deities and ancestors through prayers and chanting of mantras.
5. Offer the prepared food items, water, and other offerings to the ancestors, placing them on the altar.
6. Express gratitude and reverence for the ancestors, remembering their contributions, and seeking their blessings.
7. Offer prayers, recite sacred texts, and perform hymns dedicated to the ancestors.
8. Light the lamps and incense to symbolize the presence of the divine and create a sacred atmosphere.
9. Seek blessings from the ancestors, asking for their guidance, protection, and well-being of the family.
10. Conclude the ceremony with a final prayer, expressing gratitude to the ancestors for their presence and blessings.
11. Share the prasadam (blessed food) with family members and seek their blessings as well.

It is advisable to consult with a knowledgeable priest or follow family traditions and customs while performing the Taddinam ritual. This ritual not only honors and remembers the ancestors but also strengthens the bond between the present and past generations, fostering a sense of continuity and gratitude towards one's lineage.