An Infosys employee provided testimony to a US Senate subcommittee alleging unethical practices by Infosys related to visa fraud. The employee accused Infosys of intentionally violating visa and tax laws to increase revenues. Specifically, he said Infosys used B-1 visas to bring relatively inexperienced Indian workers to the US for projects instead of H-1B visas. Infosys then charged US client rates but paid the workers lower Indian salaries without paying US taxes. Infosys denied the allegations. The testimony has led to a probe by US authorities into Infosys' visa practices.