Apart from Pujara, Virat Kohli, who struck a hundred on the opening day of the first Test against South Africa yesterday, is the only other Indian in the top-20 of the batting list. He is unchanged at 20th.
Among the bowlers, Pragyan Ojha moved up a spot to eighth. Ashwin, meanwhile, continued to hold the top position in the all-rounders' list.
Elsewhere, Australia opener David Warner has moved up three places after stellar performances against England in the Perth Test, which the home side won by 150 runs on Tuesday to take an unassailable 3-0 lead in the five-Test series. Warner, who scored 60 and 112 to be the leading run-getter to date in the series, earned 51 ratings points to end at 741 ratings points, which has given him a lift of three places to put him just outside the top 10 in 11th position.
The other centurions from the Perth Test - Shane Watson and Steven Smith of Australia, and Ben Stokes of England have also moved up the rankings. Watson has jumped six places to 32nd, Smith has gained gain eight places to 37th, and Stokes has rocketed 81 places to 73rd.
South Africa's duo of AB de Villiers and Hashim Amla continue to head the rankings for Test batsmen.