Dhaka, Sept. 20 -- US President Donald Trump is raising dramatically to $100,000 the fee for the visa used extensively by high-tech workers, especially from India, a US official said.

The new fee on H-1B visas marks part of a larger crackdown by Trump, who has unleashed a massive push against immigration since returning to the White House but had so far not targeted the visa on which Silicon Valley has long relied.

A US official confirmed that the visa cost would be hiked to $100,000, compared with just under $1,000 now. The move was first reported by Bloomberg News.

The Trump administration will also take steps aimed at preventing tech workers visiting on the visa from undercutting wages of native-born workers.

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