The authors, who normally work for The Guardian newspaper, have claimed they stumbled upon this fact after going through classified documents of Indian, American and British security sources, thousands of unpublished court documents and a confidential annexure submitted by the Pradhan Commission"(which had probed the 26/11 Mumbai attacks).
The book reveals ISI Major Iqbal, who had handled Lashkar operative David Headley, as saying he had "a super agent at work in New Delhi known as Honey Bee".
The book discloses how Major Iqbal of the ISI gave Headley 'classified Indian files' which revealed their 'training and limitations'. Major Iqbal then boasted in front of Headley to say they got these from Honey Bee working in Delhi.