India, Oct. 12 -- The restrictions on Indian technology professionals are a reminder that talent mobility cannot be taken for granted. India must turn this moment of uncertainty into an opportunity to build a world-class technology ecosystem of its own.

The US has long presented itself as the land of opportunity, attracting the world's brightest minds to its universities, laboratories, companies, and research institutions. Indian professionals have been among the most successful beneficiaries of this openness. Today, however, Washington appears increasingly determined to restrict their entry and constrain their prospects for permanent residency.

The latest decision to suspend the processing of employment-based permanent residency applic...