India vs Bangladesh, Second Test, Day 1
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Gambhir played punishing cuts and backfoot drives as India kept a healthy run rate despite Sehwag's early dismissal.
The 23-year-old reached his half-century with a boundary to the point fence. It took 60 balls and included 10 fours.
India went to lunch at 106 for one, with Gambhir on 56 and Dravid on 39.