Premier off-spinner Ashwin stood out with 31 wickets in four Tests in India's 3-0 triumph over South Africa in the home series, and has a Test batting average of 31.68 with a highest score of 124.
Left-arm spinner Ravindra Jadeja, who picked up 23 wickets in four Tests against South Africa, is the only other Indian bowler to be figuring in the top-10 list, which is still headed by England's Stuart Broad.
Jadeja has remained on sixth position in the list.
In the batting chart, Ajinkya Rahane is the lone Indian in the top-10, as he managed to maintain his 10th place. He shares the 10th spot with Australia's Adam Voges.
Steven Smith of Australia remained the number one Test batsman.
India yesterday regained the numero uno Test status after a hiatus of nearly four-and-half years, following England's 2-1 series victory over former table toppers South Africa.
India returned to the summit of the Test rankings for the first time since August 2011.