Vamana Jayanti is the appearance day of Lord Vamana. The Supreme Lord appeared as the son of Kashyapa and Aditi in the form of a dwarf Brahmana (Vamana) to deliver Bali Maharaja, a great devotee born in the family of demons.
Sri Jayadeva Gosvami sings:
chalayasi vikramane balim adbhuta-vamana
kesava dhrta-vamana-rupa jaya jagadisa hare
O Kesava! O Lord of the universe! O Lord Hari, who have assumed the form of a dwarf-brahmana! All glories to You! O wonderful dwarf, by Your massive steps You deceive King Bali, and by the Ganges water that has emanated from the nails of Your lotus feet; You deliver all living beings within this world.
Vamana Jayanti celebration
The Deity of Lord Sri Krishna is decorated as Vamanadeva wearing a saffron robe and holding a staff, an umbrella and a water pot (kamandalu). Since we have to break the Ekadashi fast on the day of Dvadashi, the Vamana Dvadashi fasting till noon is done on the previous day (Ekadashi).
Contribute generously towards Annadana Seva on the auspicious occasion of Vamana Jayanti.