Revisions in minimum wages and changes in immigration laws in the UK, Switzerland, Canada, UAE and Singapore have led to cost escalation of $250-450 per person every month. Company executives said the impact would be felt in FY12 as new laws take effect.

The UK introduced new immigration fees last month. Only those who earn �40,000 or more will be able to stay in the country for more than a year under the Intra-Company Transfer route; earlier, there was no such minimum wage.