Afghani midfielder Ahmad Hatife had the East Bengal defence in tatters when he scored Mumbai FC's second goal before picking up a second yellow card of the match to reduce his team to 10 men.
Hatife scored in the 37th minute after East Bengal had equalized Yusif Yakubu's second minute opener through Cavin Lobo (32nd), before N P Pradeep gave coach Khalid Jamil enough reasons to celebrate with his 65th minute strike. Ryuji Sueoka scored for East Bengal three minutes from close, but that was too late in the day.
Soon after the match kicked-off, Yakubu scored one of the fastest goals of the Airtel I-League by netting the ball into the bottom right corner of East Bengal goal.
Cavin Lobo drove through the middle in the 32nd minute beating two defenders before shooting a low cross that beat Mumbai goalkeeper Nidhin Lal all ends up.
Ghanaian striker Yakubu ran amok after he got the ball on the right. He moved ahead unchallenged for 25 yards before sending a square to Hatifie, who directed the ball into the goal. The ball hit inside of the right crossbar before settling into the nettings.
East Bengal tried every trick to get Mumbai FC on the defensive but Jamil's men stood tall. Sueoka finally found a gap and scored in the 87th minute with a close range header, but it was too late to overhaul the deficit.