 Pongal or Makara Sankaranti is the most widely celebrated Hindu festival dedicated to the Sun God.These celebrate a good harvest.Other festivals that focus on Surya include Chhath of Bihar, eastern Uttar Pradesh and the neighboring regions, Samba Dashami and Ratha Saptami are also major festivals celebrated in honour of Surya; Chhath is celebrated immediately after Diwali with fasting for three days followed by bathing in river or tank with remembrance of Sun.