Anantha Padmanabha Vrata Puja is a sacred fasting and worship ritual performed to honor Lord Vishnu in his Anantha Padmanabha form. This form of Vishnu is depicted as reclining on the Anantha (serpent), with the lotus rising from his navel, symbolizing creation and preservation. This puja is primarily observed on the fourth day of the bright fortnight (Shukla Paksha) in the month of Bhadrapada (August–September), but it can be performed on any auspicious day dedicated to Lord Vishnu.

The ritual is believed to bring about prosperity, good health, and the removal of obstacles in life. The puja involves the recitation of the Anantha Padmanabha Stotra, which describes Lord Vishnu in his eternal, all-pervading form. Devotees also chant Om Namo Bhagavate Vasudevaya and offer flowers, fruits, and incense to Lord Vishnu.

During the puja, devotees also offer holy water and perform the shodashopachara (sixteen-step ritual) to the deity. The puja is generally followed by feasting on satvik food and charity to Brahmins or the needy. Fasting is considered an important part of this ritual, and devotees often observe a fast or partial fast on the day of the puja.

It is believed that performing the Anantha Padmanabha Vrata Puja with sincerity will grant material benefits, health, and spiritual advancement, ultimately leading to moksha (liberation). The worship also ensures the removal of ancestral and karmic issues, leading to a life of peace and prosperity.