“Badkul” is a family surname, not a Jain śāstric term, and there is no standard Jain-scriptural list that tells us:

> “Badkul surname = this exact gotra.”

In Jain society, gotra is usually known and passed down within each family or local community. The same surname can belong to different gotras in different regions, and sometimes people use their gotra itself as surname.

So for “Badkul” in particular:

• There is no universally accepted Jain list that I can quote to say which gotra it is.
• The only reliable way is:

- Ask elders in your own family (dādā‑dādī, bāpūji, etc.). - Or ask in your specific local Jain samaj (e.g., Oswal, Agarwal Jain, Khandelwal Jain, etc.) where your family belongs; they usually maintain gotra records for marriage purposes.

From the point of view of Jain dharma, what matters more is to avoid marriage within the same gotra and close blood relations, to prevent gotra-mixed (within same lineage) marriages; this is a social discipline, not a moksha‑deciding factor.

Because I do not have an authentic Jain-community record for the “Badkul” surname, I cannot state a gotra name for it with certainty.