With Rohit (100no) on top form from the off, India quickly got ahead of the rate and stayed there throughout, sealing the victory with eight balls remaining.
When Jonny Bairstow was caught behind by Dhoni off Hardik Pandya, he achieved this feat. Ganguly praised Hardik Pandya, Lokesh Rahul and Rohit Sharma, who played stellar roles in Indian victories in the first and the deciding matches of the T20I series. Hardik Pandya also played an end-of-innings cameo by hitting 33 off just 14 balls.
A three-match one-day series starts on Thursday at Trent Bridge, before the first of five Tests gets under way on 1 August.
The bowlers had their moments, certainly.
England lost quick wickets in the middle and at the death in the third T20 vs India. Although KL Rahul got a start, even he was dismissed before the end of the powerplay.
But on a pitch where anything that was too short or full could be flayed to the boundary, it rarely felt as though it was an even contest between bat and ball. Dhoni took a simple catch. At the halfway mark, India had fallen 11 runs behind what England had at the same time.
To make matters worse, Buttler was dropped by Yuzvendra Chahal (0/30) just after Powerplay although it was a hard chance.
The 27-year-old Roy hit the first six of the match in the fourth over, a princely down the ground shot at long off before tonking Siddharth Kaul (2/35) for another maximum in the next over to show his intent.
At Cardiff, he returned figures of 4-0-28-1 (ER: 7.0) while trying to defend a below-par total, removing skipper Eoin Morgan as a partnership was being built.
A dab to backward point brought Rohit his third T20 century, before Pandya hammered a Jordan delivery back over his head to close out the win in emphatic style. "They're a magnificent side, they've got a lot of experience, high level of skill and you can see that they're definitely here to get stuck into the challenge".
Jos Buttler led the way, striking seven fours on his way to a 21-ball 34, but by the time he was bowled by Siddarth Kaul (2-35), Roy had overtaken him.
However, India slowly brought themselves back into the match.
The Surrey opener was striking the ball beautifully down the ground and reached his half-century from 23 balls, only to fall in a rather tame manner, caught behind - one of five catches for MS Dhoni - trying to run a slower ball from debutant Deepak Chahar (1-43) down to third man.
India started well as Rohit Sharma shied with the bat right from the start, Dhawan, however, had to face an early exit.
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