Kothari gotra in Jainism is a family lineage used by some Jain communities. Here are the essentials in simple terms:

• Gotra in Jain practice is a way families trace their lineage and often has associated Kuldevi (family deity) or regional customs. It is not a single universal rule across all Jains; practices vary by region and by Digambar vs. Śvetāmbara traditions.
• For the Kothari families, the specific gotra details (like which Kuldevi is revered, or exact lineage notes) can differ from one family to another and from one region to another. Some references talk about Ishab as a possible Kuldevi for Kothari lines, but this is not universal and not every Kothari family follows the same pattern. ( jainknowledge.com)

If you want a concise Jain-centric view and examples from families, you can read more here .

Notes:

• Digambar and Śvetāmbara communities may have different local customs regarding Kuldevi or Gotra practices; there isn’t one fixed rule for all Kothari families.
• For precise details about a specific Kothari family in your region, ask the elders at your temple or your local Jain community, as practices are often family- and region-specific.