A person's birthday is most special day in one’s life. Birthday yagya is done on birthday for happy long life and to bring prosperity and remove hurdles of life.
In Vedic tradition, it is believed that the yagya performed on this day gets the desired blessings from the divine.
Yagya performed on this day helps in acquiring the success and wellness in life for self as well as family. Astrologically birthday is the time when the Sun returns to the same place it was at the time of your birth,
hence yagya performed on this day amplifies the positive effects and decreases the negative effects. The yagya helps in achieving the overall success, prosperity and peace of mind.