Dera Ismail Khan: History
=== Foundation ===
The region around Dera Ismail Khan has been inhabited for millennia, as evidenced by the nearby site of Rehman Dheri — a pre-Harappan archaeological site dating back from 3300 BCE. In the seventh century, the city had a large population of Brahmins and Buddhists.
D. I. Khan is located in the historical Derajat region, which was established in the 15th century, when Baloch people were invited to settle the region by Shah Husayn, of the Langah Sultanate of Multan. The Baloch settlers were assimilated through the later waves of Pashtun settlement, although villagers along the alluvial plains are typically Baloch or Jat.
Dera Ismail Khan region was part of Multan Subah of Mughal Empire, though D. I Khan never attained a station of great power or importance before the British period. D. I. Khan grew prosperous as a trading centre for Powindah nomads, during Nader Shah's invasion of the Mughal Empire.
D. I. Khan was ruled by nine generations of Baloch leaders descended directly from Ismail Khan. The last, Nusrat Khan, was removed from power after the city was captured by Ahmad Shah Durrani in 1750. In 1794, the city was granted to Nawab Muhammad Khan Sadozai by Shahzada Kamran Durrani.
The original town was swept away by flooding on the Indus River in 1823. The present city was founded by Nawab Sher Muhammad Khan of the Saddozai clan in 1825, and now stands four miles (6 km) away from the permanent channel of the river, atop a small plateau. Nawab Sadozai took into consideration the opinions of Diwan Lakhi Mal and Tej Bhan Nandwani for the city's reconstruction. Architects were brought in from Punjab, who designed a city where Hindus would live south of the city center and Muslims north of it.
Four bazaars were laid in each of the cardinal directions, with all four converging in the town's central Chowgalla. The rebuilt city contained a large bazaar for Afghan traders, and the city prospered from trade via the Gomal Pass. An eight foot mud wall with nine gates was built around the city during this time as well, some of which such as the Kaneran Wala and Sakki survive until today. All existing buildings date from no earlier than the 19th century.
Dera Ismail Khan remained under Sadozai rule from the nearby town of Mankera until it was annexed by Sikh ruler Maharaja Ranjit Singh of the Sikh Empire in 1836. Diwan Lakhi Mal appointed city's Kardar ruler, though the Nawabs of the city from the Durrani order were allowed to maintain their title and some income. The city suffered under punitive taxes that lead to frequent complaints in the Sikh Darbar at Lahore, resulting in several changes of Kardar. …