Khordad Sal is the birth anniversary (or birthdate) of Zoroaster

Zoroaster

Zoroaster , also known as Zarathustra , was a prophet and the founder of Zoroastrianism who was either born in North Western or Eastern Iran. He is credited with the authorship of the Yasna Haptanghaiti as well as the Gathas, hymns which are at the liturgical core of Zoroastrianism...

. Zoroastrians all over the world, specifically in India

Parsi

Parsi or Parsee refers to a member of the larger of the two Zoroastrian communities in South Asia, the other being the Irani community....

 celebrate the day in a great glamor. Parties and ghambars are held. Special prayers and jashans are also held throughout the entire day. Clean, rangoli-strewn homes, children with vermilion spots on their foreheads, new clothes, fragrant flowers and delicious meals, all form part of the rituals. A grand feast is prepared to mark the occasion.

Since the Parsi community is especially tight-knit, its celebrations bring kith and kin together; so does Khordad Sal. The festival is also an opportunity for the Parsis to review their lives and actions, and make resolutions for the future.