In Jainism, many practitioners avoid root vegetables (like potatoes, onions, garlic, carrots, beets, radishes, etc.) because uprooting the plant harms the life forms in the soil and the plant’s life cycle is ended. This minimises harm (ahimsa) to living beings.

Brinjal (eggplant) is not a root vegetable, so it is not categorically forbidden for everyone. Some Jains who follow stricter rules (or certain regional or tradition-based practices) may still avoid it for personal or local reasons, but many others do eat it.

So:

• Root vegetables: generally avoided.
• Brinjal: not a root; may be eaten by many, but some individuals/communities choose to avoid it for their own reasons.

If you’re asking about a specific Jain tradition (Digambar vs. Shwetambar) or community, I can explain how that tradition views root vegetables and brinjal in more detail.