Durga Ashtami
Maha Ashtami — the eighth night, and the Sandhi Puja at the joint of Ashtami and Navami.
Where it is kept Bengal, Odisha, Assam, Bihar and Jharkhand most intensely; observed across the north and west.
When it falls
Computed from the Moon's elongation from the Sun. The civil day is the one carrying the tithi running at sunrise.
Overview
The heaviest day of the Durga Puja. The morning is the Ashtami pushpanjali, the flower offering made standing, in groups, with the mantras called out; the afternoon or evening brings the Sandhi Puja, performed in the forty-eight minutes that straddle the end of Ashtami and the start of Navami — the last twenty-four minutes of one tithi and the first twenty-four of the next.
Sandhi Puja is the moment the Goddess is held to have taken the form of Chamunda to kill Chanda and Munda. A hundred and eight lamps are lit and a hundred and eight lotuses offered, and the timing is exact — it is computed from the tithi, not set by the clock.
Where it comes from
The Chanda and Munda episode is in the Devi Mahatmya's seventh chapter, and the name Chamunda is given there by Durga herself. The Sandhi Puja's placement at the tithi joint follows the text's account of the moment.
Kumari Puja — the worship of a young girl as the living Goddess — is performed on this day at Belur Math and elsewhere in Bengal. Vivekananda instituted it at Belur in 1901, drawing on an older Tantric practice.
Why it matters
The Sandhi window is one of the few observances in the Hindu calendar computed to the minute from a tithi boundary rather than to a day. Getting it wrong means missing it entirely.
For households keeping the nine-day fast, Ashtami is commonly the day of the kanya pujan and, in much of the north, the day the fast is broken.
How to celebrate
- Compute the Sandhi window for your own locationIt is the last 24 minutes of Ashtami and the first 24 of Navami — a tithi boundary, so it shifts with longitude.
- Offer the pushpanjali in the morningThe Ashtami flower offering is the day's public rite.
- Feed and honour young girlsKanya pujan or Kumari puja, depending on the tradition.
- Light the 108 lamps if you keep the Sandhi PujaThe count is fixed in the rite.
What to avoid
These are not all the same kind of thing. Some are prohibitions from a named text, some are Indian law, some are practical, and some are a confusion worth not repeating. Each item says which it is.
- Do not schedule the Sandhi Puja by the clock aloneIt is fixed by the tithi boundary; a published time for another city will be wrong.
- Do not break the nine-day fast before the kanya pujanWhere Ashtami is the parana day, the feeding comes first.
- Do not offer animal sacrifice where it is prohibitedThe practice persists in parts of Bengal, Assam, Odisha and Nepal and is restricted or banned by several state laws; the vegetal substitutes — ash gourd, sugarcane, banana — are long-established in the same tradition.
Where this comes from
Everything above is either computed by this site’s own panchang engine, or drawn from the works listed here. Where a custom is modern, commercial or contested, the page says so rather than presenting it as ancient.
- Devi Mahatmya, Markandeya Purana chapter 7, for the Chamunda episode underlying the Sandhi Puja.
- Kalika Purana, for the Ashtami and Sandhi rites in the eastern tradition.
- Kumari Puja as instituted at Belur Math by Swami Vivekananda in 1901.
Dates are computed for the place named above and will differ elsewhere. Regional traditions vary; where two reckonings are in use, both are named rather than one being chosen silently.
Other festivals
All festivals, with dates for any year · The calendar on the home page