Rohit's 106 propelled India to 199/5 after being put into bat, but the the Faf du Plessis-led side romped home by seven wickets in Dharamsala to lead the series 1-0.
     
"It was a good knock but we lost the game. I am pretty disappointed, it was unfortunate. No matter how much you scored, if you don't win, your efforts are not counted, nothing really matters to me.
     
"I'm sure we will come back strong. Overall, there's a room for improvement, I'm sure the guys have learnt from it and they will come back stronger. We have to do a lot of things right whether it's batting or bowling, and come out all guns blazing," Rohit told mediapersons on the eve of their second T20I at Barabati Stadium.
     
India opted for a three plus two seam-spin combination for the first game and barring off-spinner Ravichandran Ashwin all the other bowlers conceded 10-plus runs an over.
     
Rohit said India opted for a three seam attack because of the green top but the dew took it away from them. "There was a little bit of grass covering on the wicket and we thought there would be a bit of more seam movement but the dew took it away.
     
"I know they're not too experienced but it's the same with the South African attack. But when you play these kind of tournaments, you grow as a cricketer," he said.

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