Some Jain surnames found among Jains in East India include:

• Kothari
• Mehta
• Seth
• Jain
• Bhandari
• Lodha
• Dugar
• Sanghvi
• Parekh
• Porwal

In East India, especially in places like Bengal, Bihar, and Odisha, many Jain families also use surnames influenced by their merchant ancestry, caste/community traditions, and local region.

If you want, I can also give you:

• common Jain surnames by state
• Digambar Jain surnames
• Shwetambar Jain surnames