The Koli tribes are located in southeastern Pakistan. They are primarily concentrated in the lower Thar Desert, just east of the Indus River. There are several major subdivisions of Koli in that area, including the Wadiyara Koli, the Kutchi Koli (or Lohar), and the Tharadari Koli. The Koli tribes all speak their own Indo-Aryan languages.
Here are some pictures of the people from the various Koli tribes.