“Sodhiya” can be a surname used by some Jain families, but a surname alone does not confirm Jain identity.

In Jain tradition, many family names are linked to region, clan, trade, or historical lineage. So “Sodhiya” may be associated with a Jain family, but it is not enough by itself to say someone is definitely Jain.

If you want, I can help explain Jain family names and gotras in a simple way.