Bodhayana Amavasya refers to the Amavasya (new moon day) observed according to the Bodhayana Sutras or Bodhayana Dharma Shastra. Bodhayana was an ancient sage who composed a set of distinct texts that guide the practices and rituals of this community for seeking blessings from ancestors.

Amavasya Tarpanam for people following the Bodhayana Dharma shastra is distinctly different. in many ways procedurally. This ritual is performed on the day of Amavasya, which is the new moon day in the lunar calendar. Amavasya Tarpanam holds significance for paying respects to one's ancestors (pitru), starting from their own parents up to 3 generations. However the intent/goals is all the same  i.e. to seek their blessings, and paying respects to departed souls. 

Buy the Bodhayana Amavasya Tarpanam book  in Tamil especially for people following the Bodhayana Dharma Shastras in the UK/EU from GiriUK.