Umpire C Shamsuddin had adjudged well-set Root leg before wicket off Jasprit Bumrah in the last over when the batsman had actually edged the ball.
"It's extreme frustration absolutely. It shifted momentum in the 20th over. Losing a batsman who has faced 40 balls to the first ball on a wicket that's not that easy to time the ball on is quite a bit of a hammer blow," said Morgan.
He also did not believe he got out to a rash shot when well set.
"No I don't think so. I really played well tonight. We produced a really good bowling performance on a wicket that suited India more than us. I think in the chase we were always in a reasonable position. We built partnerships till the end. We should have won the game," he said.
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England needed 24 off last two overs, got 16 of those in the 19th bowled by Ashish Nehra before falling short of the target in the last over from Bumrah in which both Root and Jos Buttler got out to hand India a five-run win.
Asked if it was disappointing that DRS is not present in T20 games, he said "A little bit yeah. Even if it's only available for World Cup Games (it will be good). There's no reason why it should not be there."
"Personally it should be combination of both. High percentage of audience want balls to be hit for six and lower percentage want bowlers take wickets and put batsmen under pressure. It should be a 70:30 split.
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