The Indian Super League (ISL) has been entertaining football fans in the country since it's inception in 2014. The premier domestic football league saw ATK Kolkata - now ATK Mohun Bagan - beating Kerala Blasters FC in the final of the inaugural season to be crowned the champions. Let us take a look at the history of ISL and how it has progressed over the years to establish itself as one of the best football leagues in Asia.