In Jain Dharma, Jain people should not fight other Jain people. Jain teaching is based on ahimsa — non-violence in thought, word, and action.

A Jain should:

• avoid anger and quarrel,
• settle disputes with peace and restraint,
• not harm any जीव, including fellow Jains.

If there is disagreement, it should be resolved through forgiveness, dialogue, and self-control, not fighting.

So, according to Jain principles, fighting between Jain people is not proper.