He is also a bestselling author of titles like NaMo story: the biography of Narendra Modi, Saffron Tide and his most recent work, Kingfizzer: The Rise and Fall of Vijay Mallya. Nag is a winner of the coveted Prem Bhatia Award for excellence in political reporting and analysis and also the Rajiv Gandhi award for excellence in journalism given by the Rajiv Forum of Odisha.