Ksheerabdi Dwadasi is dedicated to Lord Vishnu. Ksheerabdi Dwadasi 2015 date is November 23. It is observed on the 12th day of the Shukla Paksha, or waxing phase of moon, in Kartik Month. Tulsi plant is worshipped on the Ksheerabdhi Dwadashi day.
Dhatri Havan and Tulsi Kalyanam are observed on the day.
A legend associated with the day suggests that after Chatur Masa, Srihari Vishnu wakes up on the Ekadasi day and visits the people on earth on the Ksheerabdi Dwadasi day.