Dated (3300 - 1900 BC), the site is situated 22 kilometres (14 mi) north of Dera Ismail Khan.

Since the earliest occupation, except for the extension outside the city in the south, the entire habitation area was enclosed by a massive wall, built from dressed blocks made from clay slabs.

Rehman Dheri also has a pre Kot Diji phase (RHD1 3300-2800 BCE) which are not part of IVC culture.

The walls demarcating individual buildings and avenue frontages are still clearly visible, and it’s easy to recognize some small-scale industrial areas; within the site, eroded kilns and scatters of slag have been found.

[4] 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.

Even though the excavators have cut a number of deep trenches into the lower levels, the uncovered area was too limited to study the spatial sharing of craft activities.

[5] Recent research has revealed a Tochi-Gomal Cultural Phase in the Gomal Plain of Northwest Pakistan.

[12] This was the culture that flourished in the Bannu Basin and Dera Ismail Khan region of Khyber Pakhtunkhwa at the end of Neolithic Age.

The inscribed seals and sherds of Tochi-Gomal phase may have contributed significantly to the development of the writing system of the mature Indus Civilization.