This was East Bengal's third win from six matches to be on nine points, as they climbed past their bitter foes Mohun Bagan on goal difference ahead of their December 16 clash here.
Gokulam too remained on nine points, having played a match extra.
There were ugly scenes at the middle of the pitch in the 78th minute when Guilherme Batata brought down Lalrindika Ralte who reacted angrily and head-butted the former but only to escape with a yellow card.
Smarting from a hat-trick of defeats, East Bengal started their campaign on a rousing note with Vanlalremdika slotting the ball home to the far post after being fed by Jobby Justin in front of the boisterous fans.
Chullova sealed the issue with a fine finish after Lalrindika ran down the middle of the park with the ball before setting up the former.
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