Odalan merajan could be interpreted as merajan birthday. But the difference using the calculation according to the Balinese calendar. Odalan is celebrated every six months. Generally Odalan in merajan celebrated on the full moon. On the tenth full moon of the calculation according to the Balinese calendar.
At the Odalan merajan, all adorned with cloth pelinggih, bali umbrella, and given the beads. Bebanten also prepared. In the Odalan merajan activities, the whole family gathered to create a means of praying. Assisted by neighbors. Odalan merajan which were extremely large and requires a large force. Also costly. But can be adjusted based on ability.