Karthigai Deepam if you are coming back to it.

Tamil

கார்த்திகை தீபம்

Karthigai Deepam

Also Karthigai Vilakkidu.

all_hindu

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.

Observances

  1. Lighting the agal vilakku

    At 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.

  2. 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

    7d
  • Buy sesame or peanut oil and cotton wicks

    home

    3d
  • Make or order pori urundai (puffed-rice and jaggery balls)

    food

    2d
  • Plan a larger kolam design for the threshold

    home

    1d
  • Soak the clay lamps briefly so they don't crack when oil is added

    home

    0d
  • Draw the kolam at sunset, before lighting

    home

    0d
  • Light the first lamp from the household nilavilakku, then carry the flame to all the others

    ritual

    0d

In the US

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

  • 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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