Well, the reverse swing didn't bring any wickets. It was all down to Jadeja. I think he has proved the worth of a spinner who takes the ball away from the bat from right handers on any kind of wicket.
Still South Africa with 5 wickets in hand and only 30 odd runs behind are in a position of strength considering that South Africa's tail is nowhere near as brittle as India's and that they still have Faf Du Plessis to bat tomorrow.
I hope Dhoni doesn't take the new ball for as long as Kallis is batting. With the spinners on and turning the ball considerably, Kallis is not scoring quickly and there is a chance to get a wicket.