Bhadrapad Shukal Ke Vaman Ekadashi is a sacred fasting day observed during the bright fortnight (Shukla Paksha) of the Bhadrapad month in the Hindu lunar calendar, typically falling in August or September. This Ekadashi, also known as Vaman Ekadashi, is dedicated to Lord Vamana, the fifth incarnation of Lord Vishnu, who took the form of a dwarf Brahmin to subdue the demon king Bali.https://www.bhaktvatsal.com/katha/bhadrapad-shukal-ke-vaman-ekadashi