Short answer: In Digambar Jain practice, you can perform an evening puja (Sandhya) and offer arghya (water) and traditional arghya items, but rice and almonds are not standard, universal offerings in classical Digambar rituals. Many households keep simple, pure offerings such as water, flowers, fruit, and a small share of milk or sweets that comply with ahimsa and vedic rules of cleanliness. If you specifically want to include rice or nuts, check with your local Digambar kaya (gurus/ajiva) because some lineages or families may have their own customs.

More concrete guidance:

• Timing: Evening puja (Sandhya) is a common time for bhakti and arghya to the Tirthankaras.
• Typical arghya offerings: clean water, a little flower or fruit, a small handful of sesame seeds or sugar, and a respectful recitation or mantra. Fresh, non-harmful items are preferred.
• Rice: not a universal or canonical requirement in Digambar puja. If you wish to offer rice, ensure it is prepared and offered in a pure, non-violent way (e.g., cooked plain with no violent preparation) and only if your guru approves. Some Digambar families avoid grains in certain austere contexts, while others permit them as part of a domestic puja.
• Almonds/nuts: similarly not a standard part of traditional Digambar arghya. They may be included in some family customs, but they are not essential to proper worship.
• Sect differences: Shwetambar and Digambar have differences in how elaborate puja is, what is offered, and whether certain items are preferred or avoided. In Digambar homes, the emphasis is often on simplicity, cleanliness, and non-violence.

If you want, I can outline a simple Digambar-style evening arghya procedure you can follow at home, with a minimal and respectful set of offerings.