What are the 16-day rituals after death in Tamil tradition?

The 16-day Dina Shraddham sequence in Tamil tradition includes: Day 1-3 — Asauca (period of ritual impurity), basic offerings of rice balls and water, Day 4-10 — Daily Pinda offerings, each pinda representing a specific element of the subtle body the soul must reconstruct, Day 11 — Ekadasha (first major ceremony), invocation of ancestors, Day 12-13 — Dvadasha and Trayodasha, water offerings and mantra recitation, Day 13 — Karumathi / Subham (the critical ceremony marking the soul’s transition from wandering Preta to aspiring Pitri), Day 16 — Shodasha (final 16-day ceremony), conclusion of the immediate post-death phase. Tamil families observe Asauca restrictions throughout this period: no visitors, no temple visits, no celebration foods.