Vaikuntha Chaturdashi falls on Kartik Shukla Chaturdashi — the day before Tripurari Purnima. It's regarded as the one day of the year when both Vishnu and Shiva are worshipped together, with equal importance — hence it's also called "Harihar Bhet"/"Harihar Milan." Both deities are equally central — neither should be treated as secondary; that's this festival's defining feature. In 2026, this tithi falls on Monday, 23 November.
Per the main legend in the Shiv Purana, Vishnu worshipped Shiva at Kashi with a thousand lotuses; when one lotus fell short, he offered his own eye instead (since he is "Kamalnayan/Pundarikaksha," the lotus-eyed one) — pleased with this devotion, Shiva restored the eye and granted him the Sudarshan Chakra. This is why the day is regarded as a symbol of the unity of Vishnu and Shiva.
As Chaturmas (the period from Ashadhi Ekadashi to Kartiki Ekadashi/Tripurari Purnima) draws to a close, Shiva — who manages creation during this period — is said to hand authority back to Vishnu and depart for Kailash to perform austerity, a meeting celebrated as "Harihar Bhet." This Chaturmas-based explanation is distinct from the Shiv Purana legend — both versions are recorded here, with neither imposed as "the" origin.
Observing this vrat is believed to bring moksha/attainment of Vaikuntha.
Vaikuntha Chaturdashi is a distinct, separate festival from Narak Chaturdashi (Ashwin Krishna Chaturdashi, part of Diwali) and Anant Chaturdashi (Bhadrapad Shukla Chaturdashi, Ganesh visarjan) — only the tithi's name ("Chaturdashi") is shared.
Four distinct thematic threads are found — presented separately here, not blended together:
The thousand-lotus/eye-offering/Sudarshan Chakra legend (the most prevalent, Shiv Purana-based): Vishnu went to Kashi (Varanasi, at Manikarnika Ghat) to worship Shiva on Kartik Chaturdashi, vowing to offer a thousand golden lotuses. During the puja, one lotus fell short — some versions say Shiva deliberately hid one to test his devotion. Since Vishnu regarded himself as "Kamalnayan/Pundarikaksha" (lotus-eyed), he plucked out one of his own eyes and offered it instead. Pleased by this devotion, Shiva restored his eye and granted him the Sudarshan Chakra. Since this event took place on Kartik Shukla Chaturdashi, this day is known as "Vaikuntha Chaturdashi."
The Harihar Bhet/Chaturmas power-transfer legend: during Chaturmas, while Vishnu rests in yogic sleep, Shiva manages the affairs of creation. On Vaikuntha Chaturdashi, Shiva hands authority back to Vishnu and departs for Mount Kailash to perform austerity. This meeting is celebrated as "Harihar Bhet"/"Harihar Milan." This is a distinct explanation from the Shiv Purana legend.
Some sources also mention a third, regional sub-legend involving bathing in the Godavari/a sinner named Dhaneshwar — but this appears in only a single source, so it isn't presented here as a primary legend. Some Hindi-language sources also mention this day as the "establishment day" of the Kashi Vishwanath Jyotirlinga — no government or academic source confirms this, so this claim isn't presented here as settled.
Devotees of both Vishnu and Shiva — this is a special day especially for those who hold to "Harihar Aikya" (the unity of Hari and Hara). General worshippers who observe the vrat/fast and worship both deities in hopes of moksha or merit.
No specific udyapan ritual is clearly recorded in any source.
Lotus flowers (a symbolic offering tied to the thousand-lotus legend), bel leaves (for Vishnu), tulsi (for Shiva) — remember the swapped order, the reverse of usual practice. Sandal paste, Ganga water/holy water, milk-curd, akshata, incense-lamp-camphor, naivedya.
A day-long fast is kept, with naivedya/parana after the night puja — the exact dietary rules (fruit-only/waterless, etc.) aren't detailed in any source. This can vary by household/local tradition.
The Vishnu Sahasranama (Vishnu's thousand names) and Shiva's 1008 names are chanted during the puja — the full list of names isn't included here; only the meaning and this reference are given.
No combined "Harihar aarti" specific to this festival was found. Traditional aartis for each deity can be used instead — for Shiva, "Shankarachi Aarti — Lavathavati Vikrala" (Samarth Ramdas), and for Vishnu/Vitthal's form, "Shri Vitthalachi Aarti — Yuge Atthavis Vitevari Uba" (Namdev) or "Yei Ho Vitthale Maze Mauli" (Vishnudas Nama). These weren't originally composed for this specific festival — they are the general aartis for each deity.
Kalyan (Maharashtra) — Trivikram Temple: according to one source, the Peshwa-era Trivikram temple in Kalyan celebrates Vaikuntha Chaturdashi, and its murti is said to have been brought from Gujarat in the 18th century. These specifics haven't been independently corroborated, so they should be verified with the temple committee. The same source also notes the temple's practice of offering tulsi to Shankar and bel to Vishnu on this day.
Ujjain and Varanasi are also recorded as celebrating this festival on a large scale (with the Kashi Vishwanath temple giving Vishnu a special place) — but these are practices outside Maharashtra, noted here only for reference.