Kirsty Young's castaway is the writer, Arundhati Roy. She won the Booker Prize for her first novel, The God Of Small Things, which has been translated into 40 languages and became the best-selling book ever by a non-expatriate Indian. After a gap of 20 years, her second novel will be published in June.

Brought up in Kerala, her Syrian Christian mother left her marriage when her children were young and set up a small school where Arundhati and her brother were educated. Raised to be independent, aged 16, Arundhati left home to study architecture in Delhi before being introduced to the film world by her second husband. Since the publication of The God of Small Things in 1997, she has continued to write non-fiction, using her influence her to focus on tackling injustice. She has campaigned against India's nuclear programme, dam-building, globalisation, religious intolerance and the inequality of Indian society.

Producer: Cathy Drysdale.