Ratnatray Vrat (Ratnatray Parva) Jain tradition observes three successive days at the end of three lunar months: Chaithra, Bhado (Bhadrapada), and Magh. On these last days, shravaks perform the Ratnatray rituals and offerings, honoring the “three gems” of Jain doctrine (Right Faith, Right Knowledge, Right Conduct) and seeking spiritual merit.

Key points you should know for Maharashtra (and in general):

• The Ratnatray Parva is tied to the Jain lunar calendar (tithis and pakshas). Because the tithis shift with the lunar month, the exact Gregorian dates change year to year and place to place.
• In practice, the three Ratnatray days are observed on the last three days of the Shukla Paksha (the bright half) in Chaithra, the last three days of Bhado (Bhadrapada), and the last three days of Magh. The Gregorian dates for these days will vary depending on the local panchang used in Maharashtra.
• There are two main Jain traditions (Digambar and Shwetambar). Both observe Ratnatray, but the liturgical specifics (recipes, puja arrangements, and exact observance days in some local communities) can differ slightly between them. The overarching spiritual aim remains the same: reverence for the Ratnas (Right Faith, Right Knowledge, Right Conduct) and purification of conduct.

If you want precise Gregorian dates for 2025 specifically for Maharashtra, I can look up a local Jain panchang (truthfully matching the exact district/city if possible) and give you the three-day window with exact dates.