Amavasya, or Amavas, is the new moon day or the no moon day in Hindu calendar. It is the darkest day in the month. Many Hindus observe a fast on the day or only consume a single meal. In 2008, the date of Amavasi is July 3. It must be noted here that in several calendars Amavasi begins on July 2. The Amavas on July 3 is also referred as Deva-Pitru-Kriya Amavasi
Amavasi is the day chosen by many Hindus to do the various rituals dedicated to the dead ancestors like Tharpanam and Shradh etc. Amavasya Thilatharpanam is marked on July 2.
Vishnu Panchaka Amavasya Upavasa is marked on July 3 in South Indian calendars. Mannetthina Amavasya is also on July 3.
The fortnight that starts with Amavasi is the Shukla Paksha or the waxing phase of the moon.
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