"The Shadow Lines" is a novel that explores themes of memory, family, and national identity through the eyes of a young boy and his experiences growing up in Calcutta, India. The narrative is framed by two major historical events: the 1964 Dhaka Riots and the 1942 World War II. The protagonist's relationships with his family and his personal experiences are juxtaposed with these events, highlighting the complexities of identity, memory, and the lasting impacts of historical events on individual lives. The novel also delves into the arbitrary nature of national borders and the shadow lines they draw between people and their histories.

In this genre-blending novel, a private detective is drawn into a surreal world where pulp fiction and reality intertwine. Tasked with finding a mysterious woman who appears in countless books and films, the detective's journey takes him across a fragmented landscape, where he encounters alternate versions of historical events and figures. As he delves deeper, the boundaries between his own existence and the fictional world of a notorious terrorist begin to blur, leading to a haunting exploration of identity, myth, and the nature of truth.