@madhouse12 Sir 1 kanal is 500 square yards/20 marlas which is the case in Lahore, Islamabad, etc. since 1 marla equals to 225 square feet in these cities.
I think in Murree, Faisalabad, etc, where the marla size is 272 square feet, it might very much be possible that 1 kanal would be 600 square yards.