Novelist Rana Dasgupta, who won the Commonwealth Writers' prize for the best book 2010, is now writing a non-fiction volume on Delhi.

"The book is a kind of quest through many areas of life in Delhi, trying to probe how the city works, the problems and what does this confusion mean to us and the reasons to be horrified. The 21st century may be a significant moment in history," Delhi-based Dasgupta told IANS in an interview.

His new book is a departure from his previous novel "Solo", which earned the writer the Commonwealth Writers' prize for the best book in the capital Monday. While "Solo" is a soliloquy about a 100-year-old Bulgarian man ruminating on violent politics, failed love, alienation and a future, the new yet to be named book "is about hard facts".