The agreement is expected to be sealed at a meeting between British Prime Minister David Cameron and Indian Prime Minister Manmohan Singh, in New Delhi, one of the highlights of Cameron's three-day trade and investment trip to India.
"The two leaders are expected to agree a substantial strengthening of practical co-operation between British and Indian authorities to increase the security of British and Indian computer networks and to help defend them against cyber attacks by terrorists, criminals and hostile states," Cameron's office said in a statement.
It said India was set to have one of the biggest online populations by 2015 with an expected 300 million users - larger than the United States and up from the 137 million users already in India today.
"One is, other countries securing their data is effectively helping us secure our data. Secondly, I think this is an area where Britain has some real competitive and technology advantages."
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