T20 cricket hurting Test batting, says India coach Gambhir

The Black Caps sealed their first-ever Test series victory on Indian soil last week in Pune and are now chasing a 3-0 sweep in the final match starting Friday at Mumbai's Wankhede Stadium.

India's famed batting, led by skipper Rohit Sharma and Virat Kohli, has flopped in the series including the hosts' 46 all out in the first innings of the opening Test.

Gambhir attributed the poor showing to an attacking 20-over mindset, at the expense of the conservative posture needed for long spells at the crease.