HYDERABAD AFTER THE FALL is the most famous book edited by Omar Khalidi published in 1988. The book documents the fall of the Princely state of Hyderabad and its impact on the Muslim community. Earlier to the publication of this book the events surrounding Operation Polo and its aftermath were not properly documented. He researched up excerpts from the Pandit Sunderlal Commission Report which for the first time offered a glimpse into what really happened in 1948 as Hyderabad was amalgamated into the Indian union.