Asanha Puja is a Thai festival and government holiday which takes place in July, on the fifteenth day of the waxing moon of the eighth lunar month. It commemorates the Buddha’s first sermon in the Deer Park in Benares.
He said the Makha Puja, Visakha Puja, and AsanhaPuja days next year would be accurately dated after a recalculation based on the lunar system.
The Makha Puja, Visakha Puja, and AsanhaPuja days were scheduled for February 23, May 22, and July 28 respectively this year but according to a calculation using the lunar system, each of the holy days should have been scheduled for a day earlier.
Magha Puja Day is one of the most important Buddhist celebrations which falls on the full moon day of the third lunar month (about last week of February or early of March).
Having realized the significance of this day, King Rama IV ordered the royal Magha Puja Ceremony tobe performed in the Emerald BuddhaTemple in 1851 and to be continued forever.
As a result, a number of people taking part in the ceremony may be less than on other days such as Visakha Puja or AsanhaPuja Days.