Yes, you can marry a Jain girl.

From Jain dharma’s point of view:

• Jain scriptures do not forbid a Jain marrying a non‑Jain. Marriage is mainly a social and family matter, not a condition for moksha.
• Caste (like Chutia, Brahmin, etc.) is not spiritually important in Jainism. All souls are equal; what matters is character, ahimsa (non‑violence), truth, and good conduct.
• Many Jain families prefer a Jain partner for their child so that:

- Home remains strictly vegetarian (often without onion/garlic/root vegetables). - Jain festivals, temple visits, and daily practices can be followed easily. These are social/traditional preferences, not strict religious rules.

If you both are serious, you should:

1. Talk clearly with her about:

- Food (pure vegetarian, no eggs, usually no alcohol). - How children will be raised (Jain/Hindu/both traditions). - Participation in Jain festivals, vows, and temple visits.

1. Respect both families

- Some Jain parents may first say no because you are non‑Jain or from a different caste. - Go slowly, be honest, show that you respect Jain dharma and will not force your views on her.

1. From Jain dharma side, such a marriage is acceptable if:

- There is mutual respect. - You allow and support her in following Jain principles. - You avoid violence‑based habits (meat, alcohol, etc.) at least in the shared home.

So: Yes, it is allowed from a Jain religious perspective. The real challenge is usually family and social acceptance, not Jain dharma itself.