The marla is a measurement of area that was used in Pakistan, India, and Bangladesh.
Under British rule the marla was standarised in all of these countries to be equal to the square rod, or 272.25 square feet, 30.25 square yards, or 25.2929 square metres which also meant it was one 160th of an acre.
However in modern times the definition of marla varies between India and Pakistan. In India and Bangladesh, the unit was standardised to 25 square yards. It is not used commonly in India now, as the guz, square meter, acre and hectare are the more generally used units.
In most of Pakistan, it is still equal to the British definition, except in Lahore district of Pakistan where it is 25 sq yards. The British definition of marla is sometimes referred to as a "big marla" in India.
One Pakistani Marla is equal to 9 square karm in Urdu. In Punjabi, 9 Sarsahi is equal to one Marla and 20 marlas in Pakistan are equal to one kanal.