Sales of Coke and Pepsi have plummeted in parts of India following the calls for a boycott of US and UK goods by an anti-war forum, the news agency AFP has reported. The drinks have been hit in the state of Kerala, after an anti-war forum, headed by Thomas Isaac - a member of a communist party - and consisting of more than 250 non-governmental groups, announced plans to convert Kerala into a "Coca Cola and Pepsi free zone" by April 13.