ATK Mohun Bagan did the double over their rivals East Bengal in the second Kolkata derby of the season and extended their lead at the top of the Indian Super League (ISL) table.
Star striker Roy Krishna scored one goal and provided the assist for the other two as the Mariners blanked their rivals.
Former East Bengal coach Subhash Bhowmick took a dig at East Bengal's tactics as he suggested that the Red and Golds had no plan going into this big clash.
"The better team won," Bhowmick told Goal. "The planning made all the difference.