From Jain Dharma point of view:

1. Is this marriage allowed?

Yes. Jain scriptures do not forbid a Jain boy marrying a Hindu Brahmin girl. Inter‑caste or inter‑religious marriage is not banned in Jain philosophy. What matters is how you both live after marriage – especially ahimsa (non‑violence), satya (truth), and simple, ethical living. You can read more here

1. Main spiritual concern in your case

Your line “She wants to have non‑Jain at home” usually means:

• She wants freedom for non‑Jain food / habits at home (often non‑veg, eggs, alcohol, onion‑garlic, etc.), or
• She does not want a clearly Jain‑practicing home (no space for Jain rules, puja, etc.)

From Jain Dharma, this is the real issue – not her being Brahmin or Hindu.

For a Jain, especially as a grihastha (householder), the home should ideally be:

• 100% ahimsa‑based kitchen – no meat, fish, eggs, alcohol, etc.
• Respectful to Jain practices – Navkar Mantra, derasar visits, Paryushan/Das Lakshan, etc.

1. Before deciding on marriage, you MUST clarify

Sit calmly with her (no anger, no fear) and discuss very clearly:

A. Food at home

• Can she accept a pure vegetarian home (no meat, fish, eggs)?
• Is she okay not bringing or cooking non‑veg at home, even for guests?

If she insists on keeping or cooking non‑veg at home, that is strongly against Jain ahimsa. This will trouble your conscience and your spiritual path.

B. Other lifestyle points

• Alcohol, smoking, any addictions – will they be kept completely out of the home?
• Respect for your Jain practices – will she allow and respect your puja, samayik, pratikraman, fasting, etc.?

C. Children

• Will children be brought up at least with basic Jain values – compassion to all jivas, strict vegetarianism, truthfulness, and respect for Jain Dharma?

1. How to see this in light of Jain Dharma

• Jainism allows you to marry her, if you can still honestly live a Jain way of life.
• If marriage means:

- non‑veg in your kitchen, - alcohol/other himsa‑based habits in your home, - and no space for Jain practices,

then, spiritually, this is very harmful for you and for the punya of your future family.

1. Practical guidance

• Be fully truthful with her: tell her what is non‑negotiable for you as a Jain (pure veg home, no alcohol, respect for Jain dharma).
• If she respects and supports these, you can move ahead more peacefully.
• If she clearly says she will not accept a Jain‑principled home and insists on non‑veg etc. in the house, then you must think very seriously:

- Are you ready to weaken or compromise your Dharma for this relationship? - This is your karma, and the result will be yours.

1. Essence

• Yes, a Jain can marry a Hindu Brahmin girl according to Jain Dharma.
• The real question is not “Is it allowed?” but “Will my home remain aligned with ahimsa and Jain values?”
• If she is willing to keep a Jain‑friendly, vegetarian, simple, dharmic home, then such a marriage is acceptable.
• If she is not willing, then for a sincere Jain, this becomes a serious spiritual risk, and you should reconsider carefully with vivek (right discrimination) and patience.