Is the Hindu Raj considered part of the Hindu Kush?

Whether the Hindu Raj is considered part of the Hindu Kush depends on the definition used. While the Hindu Kush is traditionally divided into three main sections—the eastern, central, and western regions—a wider definition of the mountain system includes the Hindu Raj as a fourth region located in Pakistan.1

The Hindu Raj is a long, winding chain of mountains that strikes southward from Lupsuk Peak in the eastern Hindu Kush, continuing toward the Kabul River. If this chain is classified as part of the Hindu Kush, then the outlying mountains of the Swat Kohistan region to the south are also considered part of the complex.1