NEW DELHI: Refuting the government’s claims on the area under Bt cotton in the country, the International Service for the Acquisition of Agri-biotech Applications (ISAAA) has estimated that close to 8.6 million acres went under genetically modified cotton crop in ’06. That is more than double the 3.2m acres estimated by ISAAA to have gone under genetically modified (GM) cotton in ’05. The Centre has been contending that only a fraction of the total area under cotton in the country is under Bt cotton.