The Bnei Menashe — one of the "lost tribes" — immigrate from India to Israel.

BBC reports:

"The members of this tribe have never forgotten where they came from and we are excited to be able to help them come back," [said  said Michael Freund, chairman of the Shavei Israel group which helped organise the journey for the Bnei Menashe members.]

But some critics say the Bnei Menashe's link to Judaism are "historically untenable". They accuse the community of using their status to escape poverty India.

There were 10 lost tribes in all. Were these people one of them? They maintained an oral tradition — dating back to the 8th century B.C. — telling of their migration through Persia, Afghanistan, Tibet, China, and ultimately to settle in northeastern India. Should skepticism be aimed at these people, or is it better to honor them and welcome them as symbolizing the idea of the lost tribes — which itself may be only a myth?

Here's the Wikipedia article on the 10 lost tribes, including details of all the various claims and speculations. There are so many candidates — in Africa, all over Asia (the Pashtuns, the Japanese), in Europe (the Irish), and even in the Americas. The Book of Mormon goes into this topic:

In the Book of Mormon, Lehi (Hebrew לחי Léḥî / Lāḥî "jawbone") was an ancient prophet who lived around 600 BC...

Shortly before the destruction of Jerusalem, Lehi escaped with his family, along with his friend Ishmael and his family, and another man named Zoram. Together, Lehi led them south down the Arabian Peninsula until they reached a fertile coastal region they named Bountiful. There, they built a ship, and sailed across the ocean to the Americas. Lehi's sons Nephi and Laman are said to have established themselves and to have founded Israelite nations: the Nephites and the Lamanites....

Many Mormons consider Native Americans to be descendants of the Lamanites. Officially, The Church of Jesus Christ of Latter Day Saints appears to accept this position....