India, Dec. 26 -- India said on Friday it has conveyed its concerns to the US over the cancellation and rescheduling of H-1B visa appointments for Indian nationals, a move that is understood to have affected thousands of applicants as the Trump administration further tightens regulations related to the hiring of skilled professionals from abroad.

In addition to levying a steep fee of $100,000 for first-time H-1B visa applicants and replacing the random lottery for selecting recipients with giving greater weight to people with higher skills, the US administration expanded the vetting of social media accounts to all applicants for H-1B and H-4 visas from December 15. This change has resulted in the abrupt cancellation of appointments and t...