tamil
Karthigai Deepam
கார்த்திகை தீபம்
November-December · 1 day
Karthigai Deepam is the festival of lights as Tamils have kept it since long before Diwali arrived in the south. It falls on the full moon of the Tamil month of Karthigai — the same nakshatra (the Pleiades, the six Krittika mothers who nursed baby Murugan) the festival is named for. The household practice is simple: at sunset, rows of clay oil lamps go up everywhere — doorstep, kolam, window sills, the puja shelf — multiplied as many as the family wants to light. The temple lights its own giant flame, and at Tiruvannamalai a cauldron-sized deepam goes up on top of Arunachala hill, visible for miles. The story Tamils tell is of Shiva appearing as an infinite column of fire that neither Vishnu nor Brahma could find the ends of.
What to do
Lighting the agal vilakku
EssentialAt sunset, clay oil lamps go up in long rows around the house, the puja altar, the kolam, and the doorstep — as many as the family wants to light, often in an auspicious count.
Maha Deepam at Tiruvannamalai
On the same evening, a giant flame is lit atop Arunachala hill at Tiruvannamalai — the Maha Deepam, visible for miles. Hundreds of thousands circle the hill on foot (girivalam) through the night.
Getting ready
Buy clay agal vilakku — restock if last year's are usable
home
Buy sesame or peanut oil and cotton wicks
home
Make or order pori urundai (puffed-rice and jaggery balls)
food
Plan a larger kolam design for the threshold
home
Soak the clay lamps briefly so they don't crack when oil is added
home
Draw the kolam at sunset, before lighting
home
Light the first lamp from the household nilavilakku, then carry the flame to all the others
ritual
In the diaspora
Karthigai Deepam lives smaller in the US than Diwali — Tamil families keep both, but the deepam side is a quiet evening at home rather than a community-wide affair. The lamp lighting itself travels well: clay agal vilakku stock up at Tamil grocery stores (and at Indian-owned shops in cities with a Tamil Sangam) for a few weeks beforehand; apartment-dwellers with fire-code concerns switch to ghee-filled glass lamps or battery diyas without losing the meaning. Tamil Sangams in the Bay Area, New Jersey, Atlanta, and Dallas coordinate communal lamp evenings at temples on the closest weekend. Pori urundai — the puffed-rice-and-jaggery festival sweet — is hardest to source; many families order from Grand Sweets shipments or make it at home from store-bought pori and jaggery.
Foods for this festival
What people eat and why — cultural context, not step-by-step recipes.
- Appam
அப்பம் · UP-pum
Served with coconut milk stew or sweetened coconut milk. Common in Christian Tamil and Kerala cuisine. Special breakfast/dinner dish.
Served with coconut milk stew or sweetened coconut milk. Common in Christian Tamil and Kerala cuisine. Special breakfast/dinner dish.
- Pori Urundai (Puffed Rice Balls)
பொரி உருண்டை
The Karthigai Deepam snack — puffed rice and hot jaggery syrup shaped quickly between buttered palms. Made alongside appam and nei urundai.
The Karthigai Deepam snack — puffed rice and hot jaggery syrup shaped quickly between buttered palms. Made alongside appam and nei urundai.
When is Karthigai Deepam?
- Karthigai Deepam 2025
- December 4, 2025
- Karthigai Deepam 2026
- November 24, 2026
- Karthigai Deepam 2027
- December 11, 2027
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