India bundled out South Africa for just 79 runs on day two of third cricket Test in Nagpur. With this, the hosts have taken a crucial 136-run first innings lead as Proteas, posted their lowest total against India in Test cricket. Earlier, South Africa started the second day of the Nagpur Test today in a disastrous fashion, losing 4 wickets for just 24 runs.Replying to India's 215, the visitors had resumed play at the overnight score of 11 for 2, with Dean Elgar and Skipper Hashim Amla at the crease. Then, in the space of just 3 balls, Spinner R. Ashwin got rid of both the overnight batsmen. First, he bowled Elgar on the fifth ball of the first over of the day, followed by Amla's, a catch at slip, on the opening ball of his second over.AB DeVilliers and Faf Du Plessis soon followed. Ravinder Jadeja claimed both the wicket.Ashwin and Jadeja, both have bagged 3 wickets each.Yesterday, after opting to bat, the hosts were bundled out for 215. Spinner Simon Harmer scalped 4 wickets, while pacer Morne Morkel took three. For India, Murali Vijay top scored with 40.This is the third Test of the 4-match series. India had won the first match by 108 runs, while the rain-marred second Test ended in a draw.