Vaikunta Ekadashi is one of the most revered fasting days in the Hindu calendar, dedicated to Lord Vishnu. It is observed on the 11th day (Ekadashi) of the waxing moon in the month of Margashirsha (December–January). According to Hindu mythology, this day marks the opening of the Vaikunta Dwaram (gates of Vaikunta), the heavenly abode of Lord Vishnu, where the souls of the devotees who have led a righteous life are welcomed after their earthly journey.

Devotees observe a strict fast (vrata) and remain in devotion throughout the day and night, often staying awake during the night vigil (jagarana), chanting the sacred names of Lord Vishnu, especially the Vishnu Sahasranama and the Om Namo Narayanaya mantra. It is believed that fasting on this day leads to liberation (moksha) and spiritual purification.

The puja involves the installation of an idol or image of Lord Vishnu and offering incense, flowers, and fruits. Tulsi leaves and ghee are placed near the idol to enhance the spiritual energy. Aarti is performed, and devotees chant Vishnu Ashtakshara Mantra, Sri Vishnu Stotra, and other prayers throughout the day.

Temples dedicated to Lord Vishnu are especially busy on this day, and special rituals and processions are held. It is also a day when devotees donate food, clothes, and other charitable items to Brahmins and the poor.

The Vaikunta Ekadashi Puja brings divine blessings, happiness, and prosperity to the devotee, along with the grace of Lord Vishnu, ensuring peace and welfare.