Lars Stindl, Jan Schlaudraff and Szabolcs Huszti were on target for Tayfun Korkut's men.
With Hertha taking the game to their hosts in the first half, Adrian Ramos failed to capitalise on a good chance to add to his 15 goals so far this term when he slipped at the crucial moment. For their part, Hannover began timidly and created just one chance in the first half, through the effervescent Leonardo Bittencourt.
It seemed set to be a similar story in the second half when Ronny tested Ron-Robert Zieler early on, only for the guests' best move of the game to change the course of the action. Stindl was involved at the start and the very finish, with Bittencourt setting him up to beat Thomas Kraft inside his near post. Hertha were stunned, and before they could get over the shock, they were two behind.
A long ball sent Bittencourt down the right and he timed his pass through to Schlaudraff, who kept his composure to dribble round Kraft and slot the ball in for his first goal since November 2012. Hertha tried to redress the issue, but after losing possession sloppily in midfield, Didier Ya Konan was able to send Huszti through to seal the points in stoppage time.
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