The result meant that the hosts took an unassailable 2-0 lead in the three-game series.

In what represented a much-improved performance by the touring batsmen, they posted 221 for three chasing a mammoth 238 with Miller leading the charge through his stunning unbeaten 106 off 47 balls that included seven sixes and eight fours.

It was the 33-year-old's second T20I century and one that was superbly supported by 69 not out (48 balls, 3 fours, 4 sixes) from Quinton de Kock and 33 from Aiden Markram.

However, their pursuit of such a tall target was always going to be tough and so it proved as the home team won a T20I series against South Africa for the first time on Indian soil.

The result had been set up by their batsmen, who after losing the toss and being asked to bat, surged to 237 for three. Their total was a result of a full team effort in which everyone contributed. The top two of KL Rahul (57 off 28 balls, 5 fours, 4 sixes) and Rohit Sharma (43) led the way after they put on 96 for the opening wicket. Virat Kohli (49 not out), Suryakumar Yadav (61 off 22 balls, 5 fours, 5 sixes) and Dinesh Karthik (17 not out) continued to attack, lifting their side to an imposing total.

Keshav Maharaj finished with remarkable figures of two for 23 amidst the carnage.

The Proteas' struggles continued at the top of the order in reply after they lost captain Temba Bavuma and Rilee Rossouw, both for ducks with the score on one.

Rebuilding took place through De Kock and Markram initially, before the former and Miller then added an unbroken 174 for the fourth wicket - the highest T20I partnership ever for their country - before ending short on 221 for three. The latter and De Kock (1964) also overhauled JP Duminy (1934) as the highest scorers in the format for South Africa.