Here are the main parvas (festivals) that occur during Chaturmas in Jainism, and how they are viewed in the two main traditions:

• Paryushan Parva

- The central Chaturmas festival for both traditions. Śvetāmbara Jains observe it as eight days of intensified vows, study, and repentance, ending with Samvatsari. Digambar Jains observe a related period called Das Lakshan Parva (ten days) during Chaturmas. ( jainsattva.com, slife.org)

• Samvatsari (the Day of Forgiveness)

- The concluding day of the Śvetāmbara Paryushan observance (the forgiveness day for gathered followers). In the Digambara calendar, this forgiveness day is tied to Das Lakshan Parva as well. ( jainsattva.com, slife.org)

• Das Lakshan Parva (Digambara)

- A ten-day festival during Chaturmas dedicated to the ten virtues (love, forgiveness, humility, etc.). It is the Digambara parallel to Paryushan but spans ten days. Śvetāmbara communities typically call their period Paryushan (eight days) instead. ( jainsattva.com)

• Anant Chaturdashi

- Marks the culmination of the Das Lakshan Parva (Digambara) or is observed as the concluding day around the same time in Śvetāmbara practice. It is associated with liberation-related reflections and events in Jain tradition. ( jainsattva.com)

• Kshamavani (Forgiveness Day)

- A day of seeking and granting forgiveness, typically observed right after Anant Chaturdashi by many Jains; the exact customs can vary by Digambara vs. Śvetāmbara communities. ( slife.org)

• Navpad Oli

- A festival observed by some Jain communities during Chaturmas, devoted to the worship and remembrance of the nine Tirthankaras. Practices vary by region and tradition. ( jainsattva.com)

Notes on differences:

• Śvetāmbara: Chaturmas-related focus is Paryushan Parva (eight days) culminating in Samvatsari, with Kshamavani observed as part of the period.
• Digambara: The equivalent period is Das Lakshan Parva (ten days) with its own structure and ends around Anant Chaturdashi or a nearby date; Samvatsari is also observed as forgiveness day in many Śvetāmbara communities but is celebrated at a different point in Digambara schedules. ( jainsattva.com, slife.org)

If you’d like, I can point you to a JainKnowledge page that explains Chaturmas and these parvas more specifically.