Gujarat is a state in western India with a coastline of 1,600 km. The document summarizes the architectural history of Gujarat, focusing on Islamic architecture from three periods. Key structures discussed include the Jami Masjid at Bharuch from the first period, which was constructed using materials from Hindu temples. The second period is characterized by the grand Jami Masjid of Ahmedabad, built in 1423. Major developments occurred in the third period under Sultan Mahmud, including the ornate Bai Hariji's Stepwell from 1499. The document provides details on the design elements of these important historical sites.