Kuthu Vilakku and Nilavilakku: The South Indian Oil Lamp Explained

Two names, one family of lamps. Nilavilakku is Malayalam — nilam means ground, vilakku means lamp, so literally the lamp that stands on the floor. Kuthu vilakku is the Tamil name for the same standing form, from kuthu, to stand erect. Kerala says nilavilakku. Tamil Nadu says kuthu vilakku. If you have seen both terms on the same product and wondered which you were buying, that is why.

It is a tall brass lamp: a wide circular base, a central stem, and an oil bowl at the top with grooves for cotton wicks. In Kerala the lamp is lit at dusk with coconut oil. Across South India it is lit to open weddings, inaugurate functions, and mark the start of a performance — the flame is what begins things.

The parts have names

A traditional lamp comes apart into pieces that screw together, which is also how it stores:

• The base plate — keezhbagam
• The central pillar — kandam
• The oil well with its wick grooves — thanguli
• The crown or finial at the top — prabhai

The crown is where the variation lives. A plain bud, a peacock, or the annam — the mythic swan associated with Saraswati, said to be able to separate milk from water.

Choosing a height, which is the only decision that matters

Everything else is preference. Height determines where the lamp can go and what it does.

• 20 inches. A table or mandir-shelf lamp. Sits beside the deity, lit daily. This is the size most homes start with.
• 32 inches. Floor-standing for a pooja room corner. Three times the weight of the 20-inch.
• 36 inches. The common temple height. Reads clearly from across a hall.
• 42 inches. An entrance piece at 9.8 kg, roughly 21.6 lb. Past about 30 inches this is architecture rather than tableware — measure the spot before ordering, because these are consistently larger in person than people picture.

All four heights of our brass kuthu vilakku come from one listing, so a table lamp and a floor lamp can be matched as a set.

Oil and wicks

These are working lamps, not decorative shells.

• Kerala practice is coconut oil. Tamil practice leans to sesame oil — nalla ennai — or pure ghee. All three burn cleanly.
• Avoid refined vegetable oils. They leave residue and blacken the bowl faster.
• Use fresh cotton wicks each time. Reused wicks leave a carbon trail that dirties the bowl and muddies the flame.
• Brass conducts heat. Place the lamp on a heat-tolerant surface — the base gets warm during a long burn.

Roll wicks so a short length sits in the groove and the rest coils in the oil. If the flame is smoking, the wick is too long.

Where it goes

Traditional guidance places the lamp in the north-east corner of the pooja room, or directly before the principal deity. A tall nilavilakku used to welcome guests is often set near the main entrance, facing inward.

If you are also setting up a mandir, the lamp sits to the right of the deity as you look at it, on the shelf or on the chowki rather than inside a closed cabinet.

Why brass, and why weight matters

A traditional nilavilakku is solid brass. A great deal of what is sold as a brass lamp is iron or aluminium under a gold polish, which photographs almost identically and behaves nothing like brass in the hand.

Weight is the quickest way to tell. Solid brass is dense. A listing that gives you a weight figure is one you can check; a listing that does not is one you cannot. Ours run 2,170 g at 20 inches up to 9,800 g at 42 inches. Uncoated brass also tarnishes — which sounds like a drawback and is actually the proof. Polished metal that never changes is not brass.

Care

• Wipe out the cooled oil with a paper towel, then dust with a soft dry cloth.
• For tarnish, tamarind or lemon with salt is the traditional method. Pitambari powder or a commercial brass polish also works.
• Rinse and dry fully so no moisture sits in the engraving.
• Nothing here is lacquered, so nothing peels. The lamp will darken and can always be brought back.

Frequently asked questions

What is the difference between a nilavilakku and a kuthu vilakku?
Regional naming for the same standing lamp. Nilavilakku is the Malayalam term used in Kerala; kuthu vilakku is the Tamil term. Kerala lamps tend to be taller and slimmer with a simple bud finial.

What oil should I use?
Coconut oil in the Kerala tradition, sesame oil or ghee in the Tamil. Avoid refined vegetable oils.

Can I use a tea light instead?
You can, but the bowl is shaped for oil and a wick and a tea light sits oddly in it. Camphor is also used in the bowl in some households.

Is it solid brass or plated?
Ours are solid brass, uncoated, and the weight is stated for every size on the product page.

Will it tarnish?
Yes. Uncoated brass darkens over months. Any brass polish restores it.

Does it come apart?
Traditional lamps screw together in sections, which makes them easier to store and to clean.

Is the price for one lamp or a pair?
One. Each size is priced and sold as a single lamp. Lamps are traditionally used in twos at a home shrine, so add two of the same size for a matched pair.

Shipping

Ships free and insured across the USA and Canada from San Ramon, California. Most orders leave within one business day. Handmade in India.

See the lamps in Brass Decor, platforms in Pooja Chowki & Bajot, and home temples in Wooden Pooja Mandirs.