Batting prodigy Quinton de Kock has hit his second successive century to set up a convincing, series-clinching 134-run win for South Africa in the second one-day international against India at Kingsmead.
De Kock made 106 in a South African total of 280 for six on Sunday in a match reduced to 49 overs a side after a late start because of a wet outfield.
India lost four early wickets against the South African fast bowlers and limped to 146 all out, enabling South Africa to clinch the three-match series with a game to spare.
Lonwabo Tsotsobe took four for 25 and Dale Steyn three for 17 as India, the world's top-ranked one-day team, were humiliated for the second time in four days.
They were beaten by 141 runs in the first match in Johannesburg on Thursday.
Hashim Amla also hit a century for South Africa, making exactly 100.
It was the third century in 15 one-day internationals for the left-handed De Kock, who turns 21 on December 17. He hit nine fours in a 118-ball innings.
Unlike in the first match, where there was a torrent of 206 runs in the last 20 overs, with South Africa finishing on 4-358, India fought back after breaking the opening stand with the first ball of the 36th over, the third of the batting power play.
India got off to a bad start when Shikhar Dhawan slapped Steyn to backward point and was out without scoring.
Virat Kohli survived some hostile short-pitched bowling from Steyn before being caught behind off Tsotsobe, also without scoring.
Ajinkya Rahane was caught behind off Morne Morkel for eight and India crashed to 34 for four when Rohit Sharma (19) pulled Tsotsobe powerfully and Amla held a superb reflex overhead catch at short midwicket.
Both teams wore black armbands and the players and crowd stood for a minute's silence in memory of former South African president Nelson Mandela, who died on Thursday.
