Paridhi Upadhaya was packing her bags after securing a computer science scholarship in the US until headlines of President Donald Trump's H-1B visa crackdown last week prompted her family in Lucknow to scrap the plan. "Trump's unending onslaught against immigrants is forcing us to consider other destinations for her," the 18-year-old's father, Rudar Pratap said. Upadhaya is among thousands of Indians for whom the American dream of world-class education, lucrative careers, better quality of life and social mobility, is turning sour due to rising U.S. visa restrictions and policy unpredictability. For decades, the H-1B visa has been the gateway to...