Kerala, courtesy the result, finished with four victories from as many matches to top Group A with 12 points. Bengal ended second with nine points from four matches.
Bengal will face Group B toppers while Kerala will take on the runner-up in the two semifinals on March 30.
In an inconsequential match at the Rabindra Sarovar Stadium, Maharashtra thumped Manipur 7-2 after trailing 1-2 at halftime.
The Northeastern outfit once again scored through Naorem Dhananjay Singh's spotkick in the 40th minute to lead 2-1 at the break.
After the break, Maharashtra stole the show riding on treble from Ranjeet Singh (59th, 78th and 90+1st minutes).
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