Opener Rohit slammed his maiden double century to cement his position at top but it was Umesh Yadav, who wooed Ranchi's crowd with his monstrous sixes.
Umesh slammed debutant George Linde to five humongous maximums in his 31-run knock off just 10 balls.
Skipper Virat Kohli, who was in the dressing room gave a hilarious response after every time Umesh strike the ball out of the park. Even, Proteas skipper Faf du Plessis was in disbelief when Umesh activated his 'beast mode'.
En-route his destructive innings, Umesh created a world record for highest strike rate minimum 30 runs - 310.
Earlier, there was no stopping the Rohit Sharma juggernaut as the ace India opener notched up his maiden Test double hundred in the third and final Test against South Africa here at the JSCA Stadium on Sunday.
Rohit always looked good for a 'big daddy' hundred when he came out to bat with an overnight score of 117 on the second day, milking the Proteas bowlers around with relative nonchalance.