Surya Kumar Yadav's controversial dismissal sparks 'soft signal' debate

India captain Virat Kohli has called for changes to the 'soft-signal' rule for outfield catches after team mate Surya Kumar Yadav was controversially dismissed in Thursday's Twenty20 International against England.

Yadav smashed 57 before his pull shot sailed to deep square leg where Dawid Malan took a tumbling low catch. As England celebrated, on-field umpire K N Ananthapadmanabhan gave the soft signal of 'out' before sending the decision to TV umpire Virender Sharma.

On-field umpires give a 'soft signal' based on their intuition when there is a tight call, making a decision before asking the TV umpire to look at it again from different angles in slow motion.

TV umpires must uphold the soft signal decision unless they have conclusive evidence to overturn it.

Replays of Thursday's incident suggested the ball might have touched the grass but Sharma was not fully convinced and upheld Ananthapadmanabhan's decision.

Kohli said during the presentation ceremony it was impossible for an on-field umpire to clearly see whether a catch taken in the deep was clean or not.

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"Why can't there be an, 'I don't know' call from the umpire?" Kohli said after India levelled the five-match series at 2-2.

"Why does it have to be conclusive? These things sometimes can really change the course of a whole game.

"You want these things ironed out as much as possible, keep this game simple, keep it linear, have one set of rules which are not grey areas."

Former India test player VVS Laxman wondered what was the point of "... watching so many replays using top class technology and still go by the soft signal ..."

"I think this rule needs to be revisited and changed," Laxman tweeted.

Former England spinner Graeme Swann called it a "stinking decision" while seamer Stuart Broad echoed Kohli's view.

"It's the 'soft signal' which is odd. Hard for off field umpire to overturn ..." Broad tweeted.

India and England play the decider at Ahmedabad on Saturday.