Pongal, also referred to as Thai Pongal, is a multi-day Hindu harvest festival celebrated by Tamils. It is observed in the month of Thai according to the Tamil solar calendar and usually falls on 14 or 15 January. It is dedicated to the Surya, the Sun God and corresponds to Makar Sankranti, the harvest festival under many regional names celebrated throughout India. The three days of the Pongal festival are called Bhogi Pongal, Surya Pongal, and Mattu Pongal. Some Tamils celebrate a fourth day of Pongal known as Kanum Pongal.

According to tradition, the festival marks the end of winter solstice, and the start of the sun’s six-month-long journey northwards when the sun enters the Capricorn, also called as Uttarayana. The festival is named after the ceremonial “Pongal”, which means “to boil, overflow” and refers to the traditional dish prepared from the new harvest of rice boiled in milk with jaggery offered to Surya. Mattu Pongal is meant for celebration of cattle when the cattle are bathed, their horns polished and painted in bright colors, garlands of flowers placed around their necks and processions. It is traditionally an occasion for decorating rice-powder based kolam artworks, offering prayers in the home, temples, getting together with family and friends, and exchanging gifts to renew social bonds of solidarity.

Pongal is one of the most important festivals celebrated by Tamil people in Tamil Nadu and other parts of South India. It is also a major Tamil festival in Sri Lanka. It is observed by the Tamil diaspora worldwide, including those in Malaysia, Mauritius, South Africa, Singapore, United States, United Kingdom, Canada, and the Gulf countries.