The Jewish community in Cochin has been around for a long time, no matter how you look at it.
If you believe in traditional stories, the Jews of the city of Cochin in southwestern India can trace their roots there back to the time of King Solomon, who lived there.
10th-century copper tablets detail what each community member can do. If you want to go with archeological finds, they should be enough.
There are only eight Cochin Jews left in the Indian state of Kerala, which is in the southwest. The rest, which now numbers about 8,000, live in Israel.
Source: https://www.thejewishstar.com/stories/cochin-jews-israels-oldest-indian-community,20170