Bagra ( Bagri / Bagriya ) is a Jain family gotra used in some Oswal/Porwal-type communities. In Jainism there isn’t one universal fixed list of gotras; different Śvetāmbara and Digambara groups preserve their own 84-gotra (chourasi) lists, and names can vary by region and sub-community. So, “gotras present in Bagra” are not fixed and can differ by locality and community tradition. You will typically find Bagri as a recognized gotra in Oswal/Porwal lineages, and other nearby gotra names appear in the same community records depending on regional manuscripts or clan histories. If you tell me the exact Jain community (for example Oswal, Porwal, or a particular region), I can give the precise gotra names used in that tradition. ( jainknowledge.com)

You can read more about how gotras are used in Jain communities here