in the world Judaism but in INDIA Jainism.but the study shows that there are many followers of Jainism who are belonging to Judaism but not converted to Judaism .because of there family problems. thanks.
Jainism is one school of thoughts among Hinduism .
i think Jainism has more numbers but don't know exact. maybe Jews maybe Janis ...but both communities are very good businessmen , rich & orthodox . Janis are strictly vegans . both are good & kind people to meet.