Ratha Saptami or Rathsaptami is an auspicious day dedicated to Lord Surya Puja. It is also known as Surya Jayanti, Vidhan Saptami, Arogya Saptami, Achala Saptami. Ratha Saptami 2012 date is January 30, Monday. Shukla Paksha Saptami in Magh month (seventh day in bright half of Magh month) is celebrated as Radha Saptami.
Worshipping Surya Bhagavan on Ratha Saptami festival gives us good health and prosperity. Surya Bhagavan is known as the giver of good health as per Hinduism.
Aditya Hrudayam and Surya Ashtottaram are the most revered prayers to chant on Ratha Saptami. In Andhra Pradesh, Karnataka, Tamil Nadu and some other places in India, women welcome Surya Bhagavan by drawing Ratham Kolam or Ratham Muggu (rangoli design of Chariot of Sun God).
Ratha Saptami Vrat Katha or the story of Rath Saptami is associated with King Yashovarma, who ruled Kamboj empire.