Ayngaran Foundation Ganesh Chaturthi Celebration of the Birth of Lord Ganesha Ganesh Chathurthi is celebrated annually with rich fervour on the fourth day of the first fortnight of Bhadrapada month, according to Hindu calendar. This day typically falls closely during August or September month as per the Gregorian calendar. Ganesh Chathurthi is observed as the birthday of Ganesha, son of Siva and Parvathi. Also called as Vinayak Chathurthi, this important festival shall be taken as an opportunity to realize the significance of His peculiar form, name and the proper way to adore the divine principle behind the form of Ganesha.