The Proteas women have pulled off a stunning six-wicket victory against India in the second T20 to seal the series 2-0 at the Ekana Cricket Stadium on Sunday, with a T20 game to spare.
The result gives the Proteas an unassailable 2-0 series lead ahead of Tuesday's final T20 in Lucknow.
In the process, the Proteas made history by claiming their first T20 series win in India.
After winning the toss and electing to field first, fast bowler Shabnim Ismail struck early as she sent India skipper Smriti Mandhana out for 7.
Shafali Verma (47 off 31 balls) put on a crucial 79-run second-wicket stand with Harleen Deol (31), before Verma fell to spinner Nonkululeko Mlaba (1/27).
Richa Ghosh struck an unbeaten 44 off 26 balls to take the home side to 158/6 in their 20 overs.
Responding to the tourists' total, the Proteas lost the early wicket of Anneke Bosch (2), SA's match-winner from the first T20, but were set on course by opener Lizelle Lee's knock of 70 off 45 balls (11 fours and a six).
Indian pacer Radha Yadav claimed Lee's wicket with the Proteas still requiring 42 for victory.
However, it was star batter Laura Wolvaardt, who steered the Proteas over the finish line with an unbeaten 53 off 39 balls (7 fours).
South Africa needed nine off six balls, which soon became seven off three.
But Wolvaardt had other plans - helped by an ill-timed no-ball - as the Proteas won the match off the final ball of the game.
Tuesday's third T20 is scheduled to start at 15:30 SA time.
Scores in brief:
India 158/4 in 20 overs (Shafali Verma 47, Richa Ghosh 44*, Anneke Bosch 1/26)
South Africa 159/4 in 20 overs (Lizelle Lee 70, Laura Wolvaardt 53*, Rajeshwari Gayakwad 1/20)
Result: South Africa win by six wickets