India were surprised how helpful the Wanderers pitch was for their seamers in their eight-wicket victory in the first One-Day International against South Africa on Sunday, as captain KL Rahul said he thought it was his spinners who would win the day.

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India bowled their hosts out for 116, a record low score for South Africa on home soil, and then easily chased down the runs with exactly 200 balls to spare.

The tourists won the final Twenty20 International on the same wicket on Thursday, and Rahul says he believed it would be a game for his spinners.

Instead seamers Arshdeep Singh (5-37) and Avesh Khan (4-27) both recorded career-best figures.

"It was completely different to what we expected," Rahul said at the post-match presentation. "We had planned to bring the spinners into the game early after what we saw in the T20 match."

"But there was a lot of help in the wicket and the boys did really well to put the ball into the right areas."

"It is my first ODI win here (South Africa) as a captain. When I was here last time (January 2022) we lost all three, so it is good to get that victory under your belt."

Both sides have rested players ahead of a two-match Test series starting on Dec. 26. There were several new faces in the Indian team, including debutant opening batter Sai Sudharsan, who took his chance with an unbeaten 55 from 43 balls.

"There is a lot of cricket being played these days. You have to prioritise formats and at the moment it is Test cricket and T20s a little bit," Rahul said.

"That is the modern-day game, but we believe whoever is here will perform for their country."