Swetambar (Shwetambar) tradition uses the term Dashami for the tenth day of a lunar fortnight. Practices on Dashami vary by local tradition and guru, but here are the common themes you’ll find in Swetambar Jainism:

• Fasting or partial fasting is common on many Dashami days, especially during major periods like Paryushan and Das Lakshana observances.
• Prayer and reflection (bhakti) often accompany the day, with Ullas (rituals) or puja for the Tirthankaras.
• Confession and repentance (Pratikraman) may be performed on or around Dashami in some communities, as part of regular self-purification.
• Reading or listening to sacred Jain texts, and chants or stotras dedicated to the Tirthankaras, are typical.
• The exact austere practices (upvasam, vrata, or samayik) and their severity depend on the guru or sangh you follow.

Note that Digambar and Shwetambar traditions can differ in which Dashami days are observed, which vows are kept, and the exact liturgy used. If you have a specific Dashami festival or month in mind (for example a Dashami during Paryushan, or a Paush Dashami), tell me and I’ll describe the customary procedures for that particular occasion.

You can read more on related practices here