Chasing a target of 270 runs, the Indians crossed the line in 45.3 overs to take a 1-0 lead in the six-match series.
Kuldeep had taken three for 34, while Yuzvendra Chahal bagged two wickets but South Africa rode on captain Faf du Plessis' 120 to score 269/8.
"We bowled very well in the middle overs and we put them under pressure. If you bowl well on any wicket, it is very difficult to score runs. There was a partnership in the middle between Faf du Plessis and Chris Morris (37). If Morris had batted for a few more overs, they could have reached 290 or 300," Kuldeep said.
"I felt I could get him (Morris) out and I took my chance. I always think if I try to bowl to contain, I will concede more runs."
In reply, Kohli's 112 and Ajinkya Rahane's 79 propelled India to a six-wicket victory as they chased down the target with 4.3 overs to spare.
The Uttar Pradesh tweaker was unfazed by the challenge of bowling overseas. "It doesn't matter where you are playing. Since childhood I have bowled on cement wickets. So that was tough wicket for me. Here the ball was turning, so it helped me.
"Whether you are playing in India or South Africa, it doesn't matter to me. In my head the only thing is taking wickets for the team and this is Chahal's plan as well when we are bowling as a pair."
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)
Business Standard has always strived hard to provide up-to-date information and commentary on developments that are of interest to you and have wider political and economic implications for the country and the world. Your encouragement and constant feedback on how to improve our offering have only made our resolve and commitment to these ideals stronger. Even during these difficult times arising out of Covid-19, we continue to remain committed to keeping you informed and updated with credible news, authoritative views and incisive commentary on topical issues of relevance.
We, however, have a request.
As we battle the economic impact of the pandemic, we need your support even more, so that we can continue to offer you more quality content. Our subscription model has seen an encouraging response from many of you, who have subscribed to our online content. More subscription to our online content can only help us achieve the goals of offering you even better and more relevant content. We believe in free, fair and credible journalism. Your support through more subscriptions can help us practise the journalism to which we are committed.
Support quality journalism and subscribe to Business Standard.