"The Rozabal Line" is a novel by Ashwin Sanghi that blends historical fiction with elements of mystery and thriller. The story revolves around the search for the tomb of Jesus Christ in India, exploring themes of faith, history, and the intersection of different cultures. The narrative weaves together various timelines and characters, including a modern-day historian and a secret society. As they uncover clues, the novel raises questions about the true nature of religion and the historical figure of Jesus, challenging conventional beliefs and inviting readers to ponder alternative interpretations of history.