Bhishma Dvadasi, is seen on the twelfth day in the time of Magha amid the Shukla Paksha (waxing period of moon). Bhisma Dwadasi is otherwise called Magh Shukla Dwadasi. It is broadly trusted that Pandavas played out the last rituals of Bhishma, the child of King Shantanu and Ganga in Mahabharata, on this day.
