The survey conducted by MORI, an opinion pollster coincides with the start of the annual conference of the Confederation of British Industry, Britain's biggest business grouping in Birmingham, on Monday.

A total of 51 per cent of respondents said pressure to outsource abroad had risen during the last two years, while 29 per cent said the burden had increased a lot, the survey said.

According to the survey, 51 per cent of businesses that have begun outsourcing have moved their operations to India, while 49 per cent have staff working in China, 24 per cent in Poland and 20 per cent in the Czech Republic.

"Off shoring is now part-and-parcel of doing business in the global economy," CBI director general, Digby Jones said adding, "Make no mistake, this is a survival issue. Anyone who believes that firms have a great deal of choice is naive."

Thirty per cent of 150 business leaders surveyed said their firms had switched activities abroad in recent years, while nearly one-quarter said they were considering such a move.

Of those who have begun outsourcing, 98 per cent cited cost reduction as a key reason for doing so. The CBI said outsourcing was advantageous for British business, despite being pushed into a corner.