In Shwetambar Jain tradition, gotra cannot be determined with certainty only from community names like Shrimal, Kochar, Bhatewara, or Lunawat. These are usually surnames / clan names / castes, not a guaranteed direct gotra.

In your case, the exact gotra is generally known from:

• your father’s family lineage
• the family register / vahivat
• elders in the family
• the marriage record or gotra-patra if maintained

So, from the details you shared, I cannot state one exact gotra reliably. It may be one of the family-line gotras used in your lineage, but that must be confirmed from your elders.

In Jain practice, this kind of family lineage is usually taken as per the paternal line and traditional family records.