In Jainism, marriage is traditionally considered a samskar (rite of passage) and is ideally performed between two Jains, as it helps both partners uphold and practice the Jain way of life, including ahimsa (non-violence), vegetarianism, and other core principles.

However, Jain scriptures do not explicitly prohibit interfaith marriages. The main concerns from a Jain perspective are:

• Spiritual Practice: Marrying outside the faith may make it more challenging to observe Jain vows, rituals, and dietary restrictions.
• Family and Community: There may be social and familial expectations to marry within the Jain community to preserve religious and cultural traditions.
• Religious Upbringing: Raising children in the Jain faith might be more complicated in a mixed-faith marriage.

Ultimately, Jainism emphasizes non-violence, respect, and compassion. The decision is personal and often guided by family, community, and individual conscience. If a Jain boy chooses to marry a Christian, it is important for both families to discuss and respect each other's beliefs and work towards mutual understanding.

For specific guidance, it is recommended to consult with knowledgeable Jain monks or community elders.