 According to Hayter (1992) the original versions of the tandoor "in the Punjab, a province in the north-west of India, were sunk neck deep in the ground".He further states that modern versions can also rest above the ground.Planalp (1971) notes that "the Panjab-style underground oven known as tandur is becoming increasingly popular in New Delhi" pointing to the Punjabi style of the tandoor.