Baisakh Mala Amabasya is the no moon day or Amavasya in Vaishakh or Baisakh month in Orissa. Baisakh Mala Amabasya 2015 date is April 18. Baisakh is also the first month in a traditional Oriya calendar. Please note that some people refer to Amavasya as no moon and some as new moon.
The day is of importance to many Hindu communities. Some communities observe a fast on the day. It is the darkest day in a Hindu calendar. It is also considered the apt day to perform pujas and rituals dedicated to dead ancestors.