In Jainism, “Fadiya” is not a universally fixed or standard Jain gotra. Jain gotra is generally a social/family lineage name, and it can differ by community, region, and family; many Jains do not use a formal gotra in a religious sense. ( jainknowledge.com)

So, Fadiya cannot be assigned to one single Jain gotra without your family/community lineage records. The correct way is to check with your elders, old marriage records, or your local Jain sangh. ( jainknowledge.com)