Amavasya is the last tithi of the lunar paksha — the moon and sun sit in the same sign, and the moon isn't visible. In Maharashtra it falls once a month, about 12 times a year. This tithi is regarded as especially suited to remembering one's ancestors (pitrus) and performing tarpan-shraddha; devotees bathe, give charity, offer pitru tarpan, and worship the peepal tree — fasting itself is optional.
The site has its own page for each of the 7 named amavasyas, such as Somvati Amavasya and Mauni Amavasya. This page instead covers the rules and rituals that apply to a plain, unnamed "darsh amavasya."
According to the state's official Marathi encyclopaedia, amavasya is the moment of lunar-solar conjunction — the last tithi of the Krishna paksha; a solar eclipse can only occur on amavasya (though not every amavasya brings one). Alongside this astronomical definition, several religiously significant sub-occasions — Somvati, Pithori, Sarvapitri, Deep — are all themselves particular amavasyas, a structure already explained on the What is a tithi page and not repeated here.
While not as extensive as Mahalaya/Pitru Paksha, every month's amavasya is considered a suitable day for pitru tarpan — a regular opportunity to remember one's ancestors. Because the moon is invisible, this tithi is widely believed to be better suited to introspection, stillness, and settling old accounts than to starting something new — this is a cultural belief, not a universal rule.
Unlike Ekadashi or Durgashtami, amavasya doesn't have a single, character-centred legend of its own — it's rooted in an astronomical tithi concept and the pitru-shraddha tradition. Instead, two widespread beliefs are associated with it:
Each named amavasya (Somvati, Mauni, and so on) carries its own particular legend and significance — see that amavasya's own page for the detail.
Generally, any Hindu whose parents, grandparents, or other ancestors have passed away performs the amavasya rituals for the purpose of tarpan-shraddha.
Sources don't agree on exactly who should perform tarpan — some say widows, or women who have lost a father, husband, or son, may also perform it, while a stricter, more traditional custom holds that the eldest son or a male heir should perform shraddha-tarpan. Both frameworks are noted here rather than presented as one fixed rule — a family's own tradition is what ultimately decides this.
A researched general sequence — details can vary by family and region:
Black sesame seeds, rice, water (for tarpan), lamp oil (for the south-facing lamp), water/milk for the peepal puja and items for circling it, and food/clothing/money for charity. (This list can vary by tradition.)
Fasting on amavasya is optional — unlike Ekadashi or Durgashtami, it isn't compulsory. Some people simply perform tarpan-shraddha and eat normally, while others fast through the day on just fruit, milk, or water — no single approach is required.
Avoiding tamasic food (meat, alcohol, onion-garlic) is a general custom, especially for those performing tarpan/shraddha. The elderly, pregnant women, and those who are unwell or on regular medication should avoid a strict fast — performing just the tarpan-shraddha can be considered sufficient.
No single, fixed, universal mantra or aarti was found for amavasya — the main recitations are tarpan mantras (which vary by kul/gotra and are best chanted through a family priest) and shraddha-related verses from the Garuda Purana, according to general sources. Some traditions also recite a peepal-praise verse while circling the tree — the specific text wasn't independently verified in this round; for tarpan mantras, consulting a family priest is the right approach.
In Maharashtra, the month ends on amavasya (the amanta system), while in North India it ends on purnima (purnimanta) — this is already covered in detail on the What is a tithi page.
One important naming confusion is worth avoiding here — the panchang's "darsh amavasya" is a plain tithi term (the subject of this page), but "darsh vela amavasya" (also called "yelavas") is a completely different agricultural festival tradition from the Marathwada region — on the seventh amavasya after sowing, farmers worship the earth in their fields; it's observed in the Dharashiv/Latur/Solapur/Parli areas. Because both start with the same word "darsh," they shouldn't be confused with each other — this page is only about the tithi-sense "darsh amavasya"; the yelavas festival has its own separate reference on the Darsh Amavasya page.
The exact tarpan mantra and sequence vary by kul/gotra/region — consulting a family priest is advisable.