Guwahati, Nov. 25 -- South Africa dominated the second session after they scored 113 runs and lost just one wicket against India as the visitors' lead swole to 508 on Day 4 of the ongoing second and final Test at the Barsapara Cricket Stadium in Guwahati on Tuesday.

At the stroke of lunch, the Proteas were 220/4, with Tristan Zorzi (60*) and Wiaan Mulder (29*) unbeaten, stitching a vital 42-run stand of 71 deliveries for the fifth wicket.

South Africa started their session at 107/3 with Tristan and de Zorzi unbeaten at 14 and 21 runs, respectively.

Both batters started cautiously, with Kuldeep Yadav and Washington Sundar starting the proceedings for India.

The first boundary of the second session came when de Zorzi played a brilliant ...