Kuldevi (family deity) and gotra practices are very regional and family-specific in Jain communities. Here’s a clear Jain-centered view:

• In Jainism, the core spiritual focus is on the tirthankaras and Jain philosophy. Kuldevi traditions are not universal across all Jain sanghs, and many Jain families emphasize their spiritual lineage and moral conduct over a fixed pantheon of family deities.
• The term gotra is more commonly used in broader Indian traditions; among Jains, a family or lineage may have a preferred local deity or guru, but there isn’t a single canonical “Ishab gota” or a universal Kuldevi for all Kothari families.
• For Digambar and Swetambar communities, there may be differences in which local or family deities are revered, or some families may not venerate a Kuldevi at all. The exact deity, if any, is typically decided within the family or local region.

Since Kuldevi and gotra details can vary a lot by family, the most reliable approach is:

• Ask elders in your family or local Jain temple community for the specific Kuldevi and any family customs for the Ishab (if that term refers to your gotra) within the Kothari lineage.
• If you’d like, tell me your region or the sub-community (Digambar vs Swetambar) and I can share the Jain cultural perspective on how families in that context commonly approach Kuldevi, plus any widely observed regional variants.

You can read more on Jain perspectives and family lineage traditions here