[2] Khushab Tehsil was an agricultural region with forests during the Indus Valley civilization.
The Vedic period is characterized by Indo-Aryan culture that invaded from Central Asia and settled in Punjab region.
The Kambojas, Daradas, Kaikayas, Madras, Pauravas, Yaudheyas, Malavas, Saindhavas and Kurus invaded, settled and ruled ancient Punjab region.
After overrunning the Achaemenid Empire in 331 BCE, Alexander marched into present-day Punjab region with an army of 50,000.
During the period of British rule, Khushab district increased in population and importance.