In Jain Dharma, marriage should be arranged with shubh muhurat, family consent, and in a way that supports dharma, simplicity, and ahimsa.

A few important points:

• Caste or community difference is not the main issue in Jain values; the main focus is character, compatibility, and dharmik conduct.
• If the date is 25th December, it is not automatically good or bad in Jain tradition. The real decision should be based on a Jain panchang / muhurt.
• Before finalizing, check:

- whether that day is auspicious according to Jain calendar - whether it avoids bad tithis, inauspicious yog, or forbidden periods - whether the marriage rituals can be done in a sattvik and dharmik way

If your family is Jain, it is best to consult a reliable Jain pandit / muhurat expert before confirming the date.

If you want, I can also explain the Jain view of marriage and shubh muhurat in simple words.