A well-known Pre-Harappan Archeological site located near Dera Ismail Khan in the Khyber Pakhtunkhwa, which is the province of Pakistan known as Rehman Dheri. It is one of the oldest developed centres established in South Asia. This site dates back to 4000 BC, which is located at 22 km north of Dera Ismail Khan. The entire habitation area was enclosed by a massive wall except the extensive outside the city in the south, the wall was made up of dressed blocks made from clay slabs.
From Bannu Road the low mound of this fortified town can easily be seen. The ultimate professional phase of the place is clearly visible on the surface of the mound by eye and even through air photographs. This mound is rectangular is shape with a grid iron network of boulevard and path that divides the path into rectangular blocks. In the early morning or after the rain the walls demarcating individual buildings and avenue frontages are clearly visible and it’s easy to recognize the site of a number of small-scale industrial areas within the site is marked as it is an eroded kilns and scatters of slags.
Rehman Dehri covers an area of about 22 hectares and stands 4.5 the nearby field. About ten to fifteen thousand inhabitants are found in this fortified town. Stone and metals tools and pottery were also found there. Only few frames of etching and scarping on the pottery were observed but no seals or writing was discovered.
In Rehman Dehri the archeological sequence is over 4.5 meters deep and it covers a series of over 1,400 years that was begun at c.3, 300 BC. Reham Dehri characterizes different periods which includes the period from c.3300-3850 BC, c.2850-2500 BC and the last is from c.2500-1900 BC. In its earliest phases it is accepted that the settlement receives its formal planning and that consequent stages stimulated the plan over time. Even though its excavators have cut a number of deep channels or investigation into the lower levels, as the uncovered area is too limited to be studied and the spatial sharing of craft activities.
In the middle of the third millennium BC the site was abandoned at the beginning of the mature Indus phase and even the succeeding activities were also reduced thus the records are found on the neighboring archeological mound, Hisam Dheri. Due to the recent developments the plans of the Early Harappan settlement were therefore disturbed.