NAGPUR: Ravichandran Ashwin led South Africa's rout on a spinners' paradise as India romped to a 124-run victory with more than two days to spare in the third test to take an unassailable 2-0 lead in the four-match series on Friday.

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• India sense victory after South Africa crumble

The off-spinner claimed seven second innings wickets while leg-spinner Amit Mishra grabbed the remaining three as South Africa, chasing 310 to stay alive in the contest, folded for 185.

Delhi hosts the fourth and final test from Dec. 3.