Atk wins third isl crown
I think there may be some confusion! ATK (Atletico de Kolkata) is an Indian professional football club that plays in the Indian Super League (ISL), but I couldn't find any information about them winning their third ISL crown.
ATK has won the ISL title twice, in 2014 and 2016, but not a third time. If you're referring to a different team or league, please let me know and I'll do my best to help!