India, Aug. 26 -- The Trump administration has either planned or set in motion a series of measures on US visas that analysts say are aimed at deterring American employers from hiring foreign workers and making immigration to the country more difficult.

The measures range from steep new fees on H-1B applications and visa extensions to higher minimum wages, and stretch to the student work programme and, potentially, to green-card queues. On Tuesday, the administration issued a pause on visa appointments for applicants around the world as the immigration crackdown in the Republican leader's second term continued.

The narrowing paths to the American dream were already closing in before the latest moves. H-1B registrations fell from about 7...