Tulsi was married to demon king Jalandhar. But she prayed to Lord Vishnu that her demon husband would be protected, with the result that no god was able to harm him. However on the request of the other gods, Lord Vishnu took the form of Jalandhar and stayed with the unsuspecting Tulsi. When the truth emerged after Jalandhar's death, Vrinda crused Vishnu and turned him to stone (Shaligram) and collapsed. From her body emerged the tulsi plant. That is why Vishnu pooja is considered incomplete without tulsi leaves. Tulsi vivah is celebrated on the next day of Kartiki Akadashi. On this day tulsi is married to Shaligram.
On this day tulsivrindavan is coloured and decorated as a bride. Sugarcane and branches of tamarind and amla trees are planted along with the tulsi plant. Only vegetarian food is cooked on this day. At midday, a full meal consisting of rice, moongachi gathi, puri , sweet potato kheer , red pumpkin vegetable cooked with pieces of sugarcane, amla and tamarind is offered to Tulsi Vrindavan. Tulsi vivah ceremony takes place in the late evening. Various poha dishes are offered to Lord Vishnu. Then prasad is distributed among family members and friends.