As far as Proteas are concerned their main four bowlers conceded more than 100 runs which I think Smith couldn't have expected from them after their superb performance in Nagpur and that is the beauty cricket when you feel you are on top suddenly you are biting dust. To sum it up it was great day for Team India but real battle starts from here on to dismantle South African batting. I feel South Africa will fight back to draw this test.
I also think Ishant Sharma has the potential but I think he is not willing to put in that extra as we all saw that spell from him on first day how quick he bowled 3 overs after getting spat from team management, so he needs to be kept on his toes to perform at his best. If he will be insecured about his position in the team I feel he will perform well. At this moment he has taken his place for granted and that is not good for him and the team.