In 1768, Mian Ghulam Shah Kalhoro ordered a fort to be built on one of the three hills of Hyderabad to house and defend his people. The fort was built using baked clay bricks, earning it the name "Pacco Qillo", meaning "Strong Fort" in Sindhi. The fort was completed in 1769, and is spread over 36 acres. Mian Ghulam Shah also built the "Shah Makki Fort," commonly known as "Kacha Qila", to fortify the tomb of the Sufi saint Shah Makki.