India have been heavily relying upon wrist-spinners in limited-overs cricket and the duo if Kuldeep Yadav and Yuzvendra Chahal have kept the likes of Ravichandran Ashwin and Ravindra Jadeja out of the squad.WATCH VIDEOFollowing that, Ashwin was seen bowling leg-spinners and practicing them to add variety to his armoury. Yes! That’s obviously not because of the new found spin twins but because of Ashwin’s affinity to try new things. And that has led him to practice another style of bowling ahead of the Centurion Test.The Tamil Nadu tweaker was seen bowling seam-ups in the nets at Centurion amidst talks of dropping the off-spinner in place of Ajinkya Rahane after India’s 72-run defeat at the Cape Town.The conditions in South Africa have not been or will be spinner friendly going forward. He only got to bowl 8.1 overs in the first Test and picked up two wickets while the home side’s Keshav Maharaj put in 10 at Newlands. This is not the first time he bowled so less in a Test. During the first Test against Sri Lanka, where the ball was swinging, he only bowled eight overs while Ravindra Jadeja managed two.The conditions now are going to be similar. So why not try something different and try to play the second match was well? Ashwin may well have to be the man to sit out and make way for Ajinkya Rahane but his batting and ability to eke out wickets thanks to his variations has always given him an edge over the other spinners in the world currently.advertisementJust for fun – when @ashwinravi99 decided to bowl seam instead of spin #SAvIND pic.twitter.com/7bsCpndNkk— BCCI (@BCCI) January 11, 2018During the Sri Lanka series, he became the fastest to reach 300 Test wickets, taking just 54 matches to get there. The record was earlier held by Australian pace bowling great Dennis Lillee who had reached the milestone in 56 Tests.Ashwin, who made his debut for India in November 2011, has been India’s main strike bowler in Test cricket over the last three years. The Tamil Nadu off-spinner has not been a regular in India’s limited-overs squads but he Virat Kohli’s go-to-man in Test cricket.After having little to do in seaming conditions during the Kolkata Test, Ashwin came to his own in Nagpur where India dominated Sri Lanka on all four days. He first took four wickets in the first innings and then ran through the lower order as the visitors hurtled towards a massive defeat.Ashwin’s career graph spiked after an indifferent 2014 where he picked only 10 wickets in 2014.For two successive years in 2015 and 2016, Ashwin finished as the top wicket-taker in Test cricket. He snared 62 wickets in nine Tests in 2015 and pocketed another 72 from 12 Tests the following year.So far, he has 306 wickets from 56 Test matches at an average of 25.35 with career-best figures of 7/59. He has 26 five-wicket hauls and seven 10-wicket hauls in whites.