The hosts pulled one back avoiding a series defeat, but they still trail 3-1 in 6-match series. Stand-in wicketkeeper Heinrich Klaasen, playing just his second worldwide game, showed nerves of steel to steer the chase after the hosts were in trouble at 102/4.
"That's the reason", Dhawan, who marked his 100th ODI with a brilliant 109 which drove India to 289/7 in 50 overs, said. The players were taken off the field once again due to lightning and rain but this time the game had to be shortened with South Africa facing a revised target of 202 from 28 overs.
The South African took a breathtaking catch to dismiss Indian all-rounder Hardik Pandya.
The revised target meant that the Proteas needed a further 159 off 20.4 overs which required a switch to T20 mode and a required run rate of eight to the over for a short period of time rather than nearly six to the over for a full 50 overs.
"Miller played well and luck was on his side".
The hosts in Johannesburg chased down a revised target of 202, ultimately easily, after David Miller was bowled off a no-ball and used his life to crack a match-turning 39 from 28 balls.
Miller still needed a second chance after he was clean bowled for seven by Chahal off a no-ball. That turned out to be the turning point. It favoured Miller and he took it with both hands and he smacked lots of boundaries and the momentum changed.
The visitors won the first ODI of the six-match series against South Africa at Durban on Thursday by six wickets, while they won the second ODI by nine wickets.
Batsmen Hashim Amla, Jean-Paul Duminy, AB de Villiers and David Miller, who can win their side a match single-handedly on a given day, might also look to come hard on the formidable Indian side, with nothing to loose.
At No. 4 walked in Ajinkya Rahane, 19.5 overs left ahead of him, and India 22 runs away from double hundred. He returned to the crease to construct a match-winning partnership of 72 off 43 balls with Klaasen, who was inventive to score freely on the leg-side. I thought our death bowling in Cape Town was also very good, and that's a good thing for South Africans to see, that our death bowling is picking up.
"We know that we have to be at the top of our game to get a win and that's what we'll do for the next game", said Kohli.
The victory was not as comfortable as it sounds because Andile Phehlukwayo blazed 23 not out off five balls in an extraordinary cameo, a knock which Klaasen described as taking all the pressure off him.
In this day and age with so much footage available from so many angles, which can slowed down, sped up, dissected and "split-screened", to not be able to "pick" a bowlers variations seems incredible. Klaasen proved to be the real difference as he punished the spinners with a plethora of inventive shots, and chased umpteen wide deliveries, hitting them in an unorthodox manner.