Ghosh is the author of The Circle of Reason, The Shadow Lines, The Calcutta Chromosome, The Glass Palace, The Hungry Tide, and Sea of Poppies, the first volume of The Ibis trilogy, set in the 1830s, just before the Opium War, which encapsulates the colonial history of the East. Ghosh's River of Smoke, is the second volume of The Ibis trilogy. The third, Flood of Fire, completing the trilogy, was published 28 May 2015 to positive reviews. The Shadow Lines that won him the Sahitya Akademi Award "throws light on the phenomenon of communal violence and the way its roots have spread deeply and widely in the collective psyche of the Indian subcontinent". Most of his work deals with historical settings, especially in the Indian Ocean periphery. In an interview with Mahmood Kooria, he said: "It was not intentional, but sometimes things are intentional without being intentional. Though it was never part of a planned venture and did not begin as a conscious project, I realise in hindsight that this is really what always interested me most: the Bay of Bengal, the Arabian Sea, the Indian Ocean, and the connections and the cross-connections between these regions." Ghosh's most recent book, , published in 2019 and dealing with climate change and human migration, drew praise from critics. The Guardian however, noted Ghosh's tendency to go on tangents, calling it "a shaggy dog story" that "can take a very roundabout path towards reality, but it will get there in the end."
Non-fiction
Ghosh's notable non-fiction writings are In an Antique Land, Dancing in Cambodia and at Large in Burma, Countdown, and The Imam and the Indian. His writings appear in newspapers and magazines in India and abroad. His most-recent non-fiction book addresses why modern literature has failed to address issues of climate change, and how radical transformation due to nature has become 'unthinkable'.
Awards and recognition
The Circle of Reason won the Prix Médicis étranger, one of France's top literary awards. The Shadow Lines won the Sahitya Akademi Award and the Ananda Puraskar. The Calcutta Chromosome won the Arthur C. Clarke Award for 1997. Sea of Poppies was shortlisted for the 2008 Man Booker Prize. It was the co-winner of the Vodafone Crossword Book Award in 2009, as well as co-winner of the 2010 Dan David Prize. River of Smoke was shortlisted for the Man Asian Literary Prize 2011. The government of India awarded him the civilian honour of Padma Shri in 2007. He also received - together with Margaret Atwood - the Israeli Dan David Prize. Ghosh famously withdrew his novel The Glass Palace from consideration for the Commonwealth Writers' Prize, where it was awarded the best novel in the Eurasian section, citing his objections to the term "commonwealth" and the unfairness of the English language requirement specified in the rules. Ghosh received the lifetime achievement award at Tata Literature Live, the Mumbai LitFest on November 20, 2016. He was conferred the 54th Jnanpith award in December 2018 and is the first Indian writer in English to have been chosen for this honour.