South Africa must get some credit for the way they fought on the third-day. At one stage it looked like the match would be over by the Lunch session but they stretched it to the final session. Hashim Amla and Faf du Plessis proved that if you trust your defence, don't panic and get some luck going your way, you can definitely bat for long hours on this (Nagpur) pitch. The two did stay for a long time, but found it difficult to score and that was a setback. The wicket of Amla opened the door for India and it resulted in more wickets. R Ashwin was once again India’s hero. He picked up 12 wickets in the match for just 98 runs. It was his 15th five-wicket haul in his short career and it is a remarkable feat. I think what separates Ashwin from Ravindra Jadeja and Amit Mishra is that Ashwin relies on flight and guile for his wickets. He even bowls slower with the new ball. Mishra and Jadeja don't beat the batsmen too often with flight, but look to exploit the pitch more. The way Ashwin is bowling is a very good sign for Indian cricket. He can be successful overseas too. His performance proves that he has become a world-class bowler.