Pitru Paksha Amavasya is a day to honor and remember our ancestors. Here are some things that can be done on this day based on the search results:

• Feed green grass to cows or make balls of flour and feed them to fishes in rivers or ponds.
• Wake up early in the morning, take a bath, and change into a dhoti. Perform Shradh rituals.
• Make a sacred offering of food in honor of your ancestors, which will provide sustenance for spiritual seekers in the ashram.
• Perform pind daan for pitru shanti, which are rituals for the soul of ancestors to rest in peace.
• Do incense-meditation for those whose date of death is not known.

It is important to note that different regions and cultures may have their own specific traditions and rituals for Pitru Paksha Amavasya.