New Delhi: India and China, which boasts of the world's largest Internet usersbase, are among the most spam-relaying countries in globally, a report by cyber security firm Sophos said.

According to Sophos Labs 'Spammiership' League tables for April-June 2013, India is ranked sixth in relaying spam nations, which is led by the US and Belarus.

"With more than a billion people and an increasing demand for internet access in both countries, it's no surprise to see China and India in the Dirty Dozen," Sophos said in a release.

With more than 300 million people and the lion's share of the world's internet connectivity, it's also no shock that the US leads outright, it added.

In Sophos' Dirty Dozen, US retains the top spot followed by Belarus, it said adding that three new countries enter the top twelve -- Ukraine, Kazakhstan and Argentina --, while three other countries exit the Dirty Dozen --- France, Peru and South Korea.

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