Also Tulasi plant is prayed and worshiped daily by lighting a deepam during this month. There is story behind this Tulasi came as a sister of Goddess Lakshmi when amrita Mantham Ocean is churned. Tulasi wanted to marry Lord Vishnu but Lakshmi did not like this and cursed her to become a plant. But Lord Vishnu took pity and for fulfilling her wish he gave a boon that when he is in form of saligram, tulasi will be close to him. On Kartika Shukla Dwadashi Tulasi plant is decorated and prayed.