Tulasi Vivah is observed on the eleventh or twelfth day (Ekadashi or Dwadashi) of the bright fortnight of Kartika — typically in November. It is a ceremonial wedding between the sacred Tulasi plant (Holy Basil) and Lord Vishnu (represented by a Shaligrama stone or a statue of Vishnu). This ritual marks the end of Chaturmas — the four-month period of cosmic sleep for Vishnu — and the formal reopening of the auspicious season for weddings and celebratory rituals. Prabodhini Ekadashi, the day before, is when Vishnu is believed to wake from his cosmic slumber.
The Legend of Tulasi and Vishnu
The story of Tulasi's connection to Vishnu is found in the Padma Purana. Tulasi was a devoted woman (Vrinda) whose husband Jalandhar was a demon king protected by her chastity. Vishnu, to defeat Jalandhar, took the form of her husband and deceived her. When Vrinda realised the deception, she cursed Vishnu to become a stone (Shaligrama). Vishnu accepted the curse and in return blessed Vrinda: she would become Tulasi, the holiest of plants, and would always be worshipped alongside him. Her leaves would be required in every Vishnu puja. The Tulasi Vivah re-enacts this divine marriage and honours Tulasi's inseparable connection with Vishnu.
The Wedding Ceremony
The Tulasi Vivah ceremony is performed at dusk, when the Tulasi plant in the courtyard or puja room is decorated as a bride — wrapped in a yellow sari (or yellow cloth tied around the plant), adorned with flowers, vermilion, and jewellery. The Shaligrama (or Vishnu idol) is placed alongside as the groom. A priest or the head of household recites wedding mantras, and the ritual follows the seven steps (saptapadi) just as in a human wedding. Lamps are lit around the Tulasi, conches are blown, and guests and family members attend the ceremony as wedding guests. Prasad of amla (gooseberry) — considered Tulasi's fruit — is distributed.
The End of Chaturmas and the Wedding Season
Tulasi Vivah is spiritually significant as the reopening of the auspicious season. During Chaturmas (Ashadha to Kartika), weddings and major auspicious ceremonies are traditionally avoided because Vishnu is in cosmic sleep. When he wakes on Prabodhini Ekadashi and his marriage to Tulasi is celebrated the next day, the divine blessing for human marriages is considered restored. From the day after Tulasi Vivah, the wedding season begins in earnest — Telugu families schedule weddings between Kartika Shukla Dwadashi and Vaikunta Ekadashi in Margasirsha. The Tulasi wedding opens this sacred window.