Delhi remained an important place for the Mughals, who built palaces and forts. Most importantly, Shah Jahan had the walled city built from 1638 to 1649, containing the Lal Qila and the Chandni Chowk. Delhi was one of the original twelve subahs (imperial Mughal provinces), renamed Shahjahanabad in 1648, bordering Awadh, Agra, Ajmer, Multan and Lahore subahs. Daryaganj had the original cantonment of Delhi, after 1803, where a native regiment of Delhi garrison was stationed, which was later shifted to Ridge area. East of Daryaganj was Raj ghat Gate of the walled city, opening at Raj Ghat on Yamuna River. The first wholesale market of Old Delhi opened as the hardware market in Chawri Bazaar in 1840, the next wholesale market was that of dry fruits, spices and herbs at Khari Baoli, opening in 1850. The "Phool Mandi" (Flower Market) of Daryaganj was established in 1869, and even today, despite serving a small geographical area, it is of great importance due to dense population.