In general, maida is not forbidden in Jainism. Maida is a refined wheat flour, so by itself it is usually considered acceptable for Jains.

However, a few points matter:

• Check the ingredients: many maida products may contain eggs, gelatin, yeast, or other non-Jain ingredients.
• Preparation matters: if it is made in a way that conflicts with your family or sect’s Jain practices, you may avoid it.
• Health and restraint: some Jains avoid maida as a refined, less wholesome food, but that is a matter of discipline and health, not a strict Jain prohibition.

So the simple answer is: Yes, Jains can generally eat maida, if it is pure and suitable by Jain dietary standards.