Pongal is a harvest festival celebrated in Tamil Nadu and other states of India. It lasts for four days and involves worshipping the Sun God, cattle, and nature. Pongal is a four-day harvest festival of Tamil Nadu state, southern India. It is also celebrated by Tamils in various other regions of southern India and the world. The festival is observed in mid-January according to the Tamil solar calendar and marks the beginning of Thai, an auspicious month for Tamils. Based on cultural significance and common knowledge, Tamil Nadu is the state where the Pongal festival is predominantly celebrated. The Pongal festival is a thanksgiving celebration for a bountiful harvest. Pongal is a four-day harvest festival of Tamil Nadu state, southern India. It is also celebrated by Tamils in various other regions of southern India and the world.