If you do not know the tithi your ancestor died on, tradition has a clear answer — Sarv Pitru Amavasya, 10 October 2026. How to find a lost tithi, what to do if names are forgotten, and why guessing is the one thing to avoid.
TL;DR: If you do not know the tithi your ancestor died on, you have not failed and you are not stuck. Tradition built an answer into the calendar: Sarv Pitru Amavasya — Saturday, 10 October 2026 — the closing day of Pitru Paksha, which covers every ancestor of your line, including those whose tithi, and even whose names, are lost. The one thing to avoid is guessing a tithi, because the sankalp would then name the wrong day. This guide covers how to recover a lost tithi if it can be recovered, what to do when it cannot, and what happens when you do not know the names either.
Yes. This is the single most common situation among families today, and the tradition anticipated it. Sarv Pitru Amavasya exists precisely for ancestors whose tithi is unknown, whose rites were missed, or whose names have been forgotten. Performing shradh on that day is the correct answer, not a compromise.
Yes. Sarva means "all" — the day is designed to collect every ancestor who does not have a day of their own. In 2026 it falls on Saturday, 10 October. If you take only one action for your ancestors this year and you do not know their tithis, this is the one to take.
Because the sankalp — the spoken declaration naming the day, the ancestor and you — is the load-bearing part of shradh. Guessing means declaring a day that is not theirs. An unknown tithi has a prescribed remedy; a wrongly named one does not. When in doubt, Amavasya is always correct.
No. If you know the tithi, their own day is the right day. But Amavasya is not a lesser substitute — it is the day the whole fortnight builds toward, and the only one valid for every ancestor regardless of circumstance. Many families observe both the individual tithis and the closing Amavasya.
Work through these in order before falling back to Amavasya:
The tithi — always. This confuses more families than anything else. Someone who died on 3 June did not die "on 3 June" in ritual terms; they died on a particular tithi of a particular lunar month, and that tithi lands on a different English date each year. Convert it once, write it down, and no future generation has to solve it again.
Tradition prescribes the Amavasya of that same lunar month. If you know a grandparent died sometime in Ashwin but not on which day, the Ashwin Amavasya applies — and that is Sarv Pitru Amavasya itself, 10 October 2026.
Then Sarv Pitru Amavasya covers it completely. This is the case the day was designed for above every other. You do not need to reconstruct anything, and you do not need to apologise for not knowing.
Any good panchang will convert a known date of death to its tithi, and that is all a "calculator" does. What no tool can do is recover a date nobody recorded. If the date itself is gone, a calculator has nothing to work with — and Amavasya is the answer rather than a tool.
You can still perform shradh. The sankalp names you and your gotra, and the offering is made to your ancestors by relationship — father's line, mother's line, and the generations behind them. Losing names past three or four generations is completely normal and does not weaken the rite.
Yes, and you should. When booking a DevPunya puja you can enter your ancestors' names, and the pandit chants them along with your own during the sankalp. Name the ones you know; the rest are covered collectively by relationship. Nothing is lost by a partial list.
Ask the elders in your family first, since gotra usually survives even where tithis do not. If it genuinely cannot be recovered, tradition allows Kashyap gotra to be used as the default — the provision exists exactly so that a missing gotra never blocks the rite.
No. The rite is performed at the teerth, not at your ancestral place. What travels is your name, your gotra and the names you provide. Families who migrated generations ago, or who were displaced and lost their records entirely, perform shradh the same way everyone else does.
Saturday, 10 October 2026. The Amavasya tithi runs from 9:35 PM on 9 October to 9:19 PM on 10 October, and the shradh window — the Aparahna Kaal — falls between roughly 1:18 PM and 3:37 PM. It is the most firmly agreed date in the whole fortnight.
Every ancestor of your line, with no exception — those whose tithi you do not know, whose names are lost, whose shradh you missed on their own day, who died unnaturally, whose last rites were never performed, and relatives outside the direct line such as maternal ancestors or a departed guru.
Tradition describes the lunar cycle as running differently for the ancestors: Amavasya, the new moon, is their daytime. It is when the pitrs are held to be nearest and most able to receive an offering. This is why monthly Amavasya tarpan is kept year-round — and why the Amavasya closing Pitru Paksha carries the most weight of all.
Mahalaya Amavasya, Pitru Moksha Amavasya, Sarvapitri Amavasya and simply Mahalaya all refer to the same day. Finding different names in different places leads people to think they are different dates. They are not — all of them are 10 October 2026.
Bathe in the morning, keep a light sattvic diet, and in the afternoon window offer tarpan — water with black sesame, facing south, naming whichever ancestors you know. Set aside food portions for a cow, a dog, a crow and the ants. Feed someone in need. None of this requires a priest.
Any of the Sarv Pitru Amavasya pujas, since all of them fall on 10 October and all are offered for the line collectively:
| Puja | Teerth | From |
|---|---|---|
| Pind Daan & Pitra Shanti | Brahma Kapal, Badrinath | ₹991 |
| Tripindi Shraadh | Pisachmochan Kund, Kashi | ₹991 |
| Pitra Tarpan & Dosh Nivaran | Dharmaranya Vedi Ghat, Gaya | ₹951 |
| Narayan Bali & Naag Bali | Triambakeshwar, Nasik | ₹991 |
| Pitra Shanti & Dosh Nivaran | Rameshwaram Kshetra | ₹991 |
Our guide to the five sacred places explains which teerth suits which situation.
That is a fair position when the family history is gone. The 21 Generation Pitra Shanti Maha-Anushthan performs the rites at all five teerths on 10 October, offered across 21 generations, from ₹2,501 — against ₹4,915 if the five were booked separately.
Book the 21 Generation Pitra Shanti Maha-Anushthan — All 5 Teerths, from ₹2,501 →
Yes. Your name and gotra are spoken aloud by the pandit in the sankalp, and you can enter your ancestors' names when booking so they are chanted alongside. You receive the full video with the sankalp audible, filmed at the temple, within 72 hours.
Begin this year. Tradition does not treat a lapse as unforgivable — the story at the heart of Pitru Paksha is about an omission made in ignorance being put right. Where shradh has lapsed for three or more years, the prescribed rite is Tripindi Shraadh. Where it is shorter, an Amavasya shradh settles it.
Shradh can be performed on any Amavasya through the year, so nothing is permanently lost. But Sarv Pitru Amavasya carries weight no other day matches, and the next one is a year away. If you cannot observe it yourself, having the rite performed on your behalf keeps the date rather than postponing it twelve months.
For queries or Pay-After-Video, WhatsApp or call +91 9079620532. All Pitru Paksha 2026 pujas are listed here.