Astrological Significance of Baisakhi The festival of Baisakhi falls on April 13 every year and April 14 once in every 36 years. Change in date is because of the fact that date of Baisakhi is reckoned according to the solar calendar. Astrologically, the date of Baisakhi is significant as marks sun’s entry into Mesh Rashi. For this very reason, many people also know Baisakhi as Mesha Sankranti. The auspicious date of Baisakhi is celebrated all over India under different names and rituals.