Japan Needs Indian Tech Workers. But Do They Need Japan?

In many ways, Yogendra Puranik is an immigrant success story.

Mr. Puranik, 45, joined the initial wave of Indian tech workers who went to Japan in the early 2000s. He became a Japanese citizen and in 2019 won elected office in Tokyo, a first for anyone from India. This year, he was hired as the principal of a public school.

Now, though, as Japanese companies scramble to lure more highly educated Indians like Mr. Puranik to fill a yawning…