Your batsman may not like the extra bounce of the South African pitches. That has often been the probable for teams from the Sub Continent, they are not used the the extra bounce and it turns the bouncer into a deadly weapon.
The bouncer is a problem only for a select few of our players (e.g. Ganguly, Raina, both of whom are not there in the test team now). Our players on the contrary, enjoy bounce because it gives them more freedom to play their shots. Only thing our players dont like is lateral movement. If you mix that along with bounce, it becomes deadly.
India take sometime getting used to overseas conditions (because they mostly play on flat and slow 'n low tracks) but our 'getting used to' time has drastically improved over the past years. And that reflects in our performance in overseas conditions ever since Saurav Ganguly took over as captain.
SaiSrini added 2 Minutes and 26 Seconds later...
Wasn't the 1-1 where Mcgrath and warne were injured or something.
Your team was still very very strong without those players. And I am not sure if the result would have been too different had these two players played (esp. Warne who has not been as successful against India). McGrath would have made a minor difference, but if we get into "if's and but's", then India also can play that card in their favor in many other series.