Jama Masjid in Ahmedabad, Gujarat was built in 1424 AD by Sultan Ahmed Shah, the founder of the city. It was the largest mosque in India when constructed and has a unique architectural design with entrances from three sides. The mosque has a large rectangular courtyard surrounded by colonnades on three sides and a prayer hall on the fourth side. The prayer hall has 260 columns and is covered by 15 domes decorated with carvings resembling lotus flowers and bells. The mosque blends both Hindu and Muslim architectural styles.