New Delhi, Dec 04 (ANI): Ajinkya Rahane rescued India with a gutsy unbeaten 89, guiding the hosts to 231 for seven after off-spinner Dane Piedt made a memorable return to the South African test side on the opening day of the fourth and final test. India were reeling at 66-3 and then at 139-6 but Rahane, often unnoticed in the crowd of flashy strokeplayers around him, featured in two fifty-plus stands to help India post the highest total in the low-scoring four-match series. Ravichandran Ashwin was giving him company on six at stumps. For South Africa, Piedt claimed four wickets while paceman Kyle Abbot (3-23) also justified his recall for the final test against India, who have taken an unassailable 2-0 lead. Of all the tracks used in the four-match series, the hard 22-yard strip at the Ferozeshah Kotla stadium offered the least turn but Piedt conjured up a performance that left many wondering why the 25-year-old was not played before. Home captain Virat Kohli won his fourth successive