Short answer: Yes—dry fruits (sukha meva) are generally allowed in Paryushan for laypeople, unless you have taken a specific vow (pachchakkhan) that restricts them.

How to keep it within Jain maryada (discipline):

• Check your vows first: Follow whatever you have promised (e.g., only boiled water, upvaas, ekasana/beyasana, no green vegetables, etc.). If your vow excludes dry fruits, then don’t take them.
• Ahimsa care: Use plain, unprocessed dry fruits. Avoid honey-coated, chocolate-coated, or heavily processed items. Do not use anything with possible living organisms (infested, moldy, or sprouted).
• No roots/greens issue: Dry fruits are not root vegetables and not leafy greens, so they are usually permitted.
• Timing and purity: Eat only in the permitted time window you’ve taken (e.g., before sunset, with boiled water rules as applicable). Do not cut/open at night. Keep utensils and place clean.
• Avoid sprouting: Do not soak to sprout; sprouted items are avoided.
• Common sense checks: Pick whole, clean pieces; avoid items likely to harbor tiny life (e.g., very old or moist stock).

Tradition notes:

• Shvetambar: During the 8 days, many observe “no green vegetables.” Plain dry fruits are commonly accepted unless personally renounced.
• Digambar (Das Lakshan): Emphasis is on tapas and aparigraha; dry fruits are generally acceptable for laypeople if consistent with their fasting vow. Those observing stricter fasts may avoid all solid food.

If in doubt, follow your own pachchakkhan and your guru’s guidance for your sangh.