US visa: అమెరికాలో విదేశీ విద్యార్థులకు నాలుగేండ్ల గడువు.. ట్రంప్ నిబంధనలు
US visa rules are tightening for over 330,000 Indian students. A new policy limits F-1 visa holders to a maximum four-year stay, replacing the Duration of Status rule. This targets those in lengthy programs like PhDs, creating uncertainty. Oversight and national security are cited as reasons.