Ninsul

 was a planet that was visited by the Eleventh Doctor.

Its appearance was noted as looking dirty, scrappy and messy.

There were two known cities — Peorek and Sokkar. The Elite came from Peorek.

The Elite enslaved some of their own race to create a machine known as the Wardroid to attack the city of Sokkar. The Eleventh Doctor managed to hack the machine, and they were defeated. (COMIC: Line of Battle)