Khem Karan is a town and a nagar panchayat in Tarn Taran district in the Indian state of Punjab. It was the site of a major tank battle between India and Pakistan in 1965 resulting it also being known as the graveyard of tanks.

The 1965 Indo-Pakistani War was witness to the largest tank battle in military history between World War II and 1965. The battle led to the creation of Patton Nagar (or Patton City) at the site of the battle viz., Khemkaran.

source: http://en.wikipedia.org/wiki/Khemkaran