The third Cricket test of the four-match series between India and South Africa will begin in Nagpur tomorrow. The hosts who won the first Test at Mohali, are leading the series One-Nil. After the washout of the second match at Bengaluru,India would be looking to deliver the knock-out blow on South Africa and sew up the rubber in the third Test. For the visitors, however, it will be a do-or-die game which they must win to keep the contest alive for the fourth and last match at Delhi. With the VCA Stadium pitch in Jamtha at Nagpur sporting a dry look and promising to offer copious turn to spinners, India are holding the aces because of their superior spin attack.