Pongal is one of the most popular harvest festivals of South India, mainly of Tamil Nadu. Pongal falls in the mid-January every year and marks the auspicious beginning of Uttarayan - sun's journey northwards. Pongal festival lasts for four days. This four days long festival of Tamil Nadu is celebrated for showing gratitude to nature. The literal meaning of Pongal is "spilling over" and it had been named so, because of the tradition of boiling rice in a pot until it starts overflowing. Other traditions of the celebration include drawing of Kolam, swinging & cooking of delicious Pongal.