In Karnataka, the festival is marked by visiting one's friends and relatives to exchange greetings, and by the preparation of a dish called Ellu (made with sesame seeds, coconuts, sugar blocks, etc). A common custom found across Karnataka is the exchange of sugarcane pieces and Ellu with one's neighbors, friends and relatives.

In Karnataka, Pongal is known as 'Sankranti', and cows and bullocks are gaily decorated and fed 'Pongal'- a sweet preparation of rice. Special prayers are offered in the temples and houses. In the evening, the cattle are led out in procession to the beat of drums and music. In the night a bonfire is lit and the animals are made to jump over the fire.

Makar Sankranti or Pongal is marked by men, women and children wearing colorful clothing; visiting near and dear ones; and exchanging pieces of sugarcane, a mixture of fried til, molasses, pieces of dry coconut, peanuts and fried gram. The significance of this exchange is that sweetness should prevail in all the dealings.

At Gavi Gangadhareshwara (Siva) temple in Bangalore's Gavipuram, a rare phenomenon is witnessed in the evening. The Sun's rays pass through the horns of the Nandi briefly to fall on the Lingam in the sanctum. It is an architectural marvel.