Thai Pongal festivities are celebrated with much avidity and gusto by the Tamil population in the South Indian states. On the third day of the occasion, Mattu Pongal is devoted to worshipping bulls, cows and oxen. Farmers honour their cattle by celebrating it as a day of thanksgiving to them. 🙏🏻 When Is Mattu Pongal 2023? Know Date, Jallikattu Festival Rituals and Significance of The Third Day of Tamilian Harvest Festival.