|Third Test, Nagpur, day two|
|India 215 & 173 Dhawan 39, Tahir 5-38|
|South Africa 79 Ashwin 5-32, Jadeja 4-33 & 32-2|
|South Africa need a further 278 to win|
South Africa were bowled out for 79 - the lowest Test total against India - as 20 wickets fell on the second day of the third Test in Nagpur.
Resuming on 11-2 in reply to 215, the tourists slipped to 12-5 before being dismissed in only 33.1 overs.
Ravichandran Ashwin took 5-32 and Ravindra Jadeja 4-33 for India, who lead 1-0 in the four-match series.
Although South Africa bowled India out for 173, they were 32-2 at the close in pursuit of 310 for victory.
All 10 wickets fell to spin in South Africa's first innings, and eight in India's second innings, on a pitch described by former England captain Michael Vaughan as "diabolical".
The Proteas, the world's top-ranked Test side, have not lost an away Test series since 2006.
The day in numbers
- India have never bowled a side out for fewer than the 82 made by Sri Lanka at Chandigarh in 1990
- Only once before have 20 wickets fallen in a day in India - against Australia in Mumbai in 2004
- South Africa's 79 was their lowest total since they made 72 against England in Cape Town in 1957
- South Africa's first innings lasted 33.1 overs, their third shortest innings since returning to Test cricket in 1992
- Ashwin is only the second spinner to bowl unchanged through a completed innings, following England's Monty Panesar against India at Mumbai in 2012
- Never before have 32 wickets in the first two days of a Test in India