Five penalty runs conceded by Dhoni

 Over 39.3: R Ashwin to Mahmudullah,  Down the leg side, Mahmudullah paddles it down to fine leg. A run taken. However, Dhoni removed his gloves. He looks to deflect the ball back to the stumps at the striker's end but the ball bounces on the gloves. 

Clearly,  

 Dhoni's no-look flick costs India five runs this time. Yuvraj lobs a rather wayward throw and Dhoni, in his attempt to flick the ball on to the stumps, redirects the ball on to the glove that he'd taken off and flung to the ground. Umpire spots it. That's just like the ball hitting the second helmet placed behind the wicketkeeper.
So the umpire given five penalty runs to the batting team bangladesh. 

The umpire signals five penalty runsby bringing one arm across his chest and touching his shoulder. If he taps that shoulder, the penalty runs are awarded to the batting side.