1 Number of India players who have made 500 or more runs and taken at least 50 wickets in Tests in a year before R Ashwin in 2016. Kapil Dev did it twice for India, in 1979 and 1983. There have been only ten such instances overall. Ashwin completed 500 runs in 2016 during his innings of 57 not out in Mohali. (All numbers from Tests which overlapped into the next year are included in the year in which the Test started.)
5 Number of 50-plus scores by Ashwin in 12 innings in Tests in 2016 - equalling the second most for India. Only Cheteshwar Pujara with seven in 13 innings is ahead of Ashwin. Virat Kohli also has five such scores in 15 innings this year.
16 Wickets taken by Adil Rashid at an average of 28.18 in this series so far - the most by any bowler and the fourth highest by an overseas legspinner in a Test series in India. Rashid has taken at least three wickets in an innings four times already in this series.
2001 The previous time a visiting team scored a total higher than England's 283 after having been four down for fewer than 100. Australia had made 349 in the Mumbai Test on that occasion after losing their fourth wicket on 98. England's 283 in the first innings is the highest total out of the 33 times since that Mumbai Test that a visiting team has lost its fourth wicket before 100.
7 Number of 50-plus scores by Pujara in 13 innings in 2016 - the most he has hit in a year. He has made 748 Test runs this year at an average of 62.33. It also equals the most 50-plus scores by any batsman in a season in India. Sunil Gavaskar (twice), Dilip Vengsarkar and Virender Sehwag are the others with seven 50-plus scores in a Test season in India.
12.60 Rahane's batting average in this series; he has made just 63 runs from five innings. This is the first time since his debut series against Australia - when he played just one Test - that Rahane has not hit at least one 50-plus score in his first five innings of a series.
1990 The previous time before Karun Nair in Mohali that an India debutant was run out in Tests. Anil Kumble was run out against England at Old Trafford on that occasion. Nair is the 12th India batsman to be run out on debut.
3 Number of times before Virat Kohli that an India batsman made 40 or more runs in each of his first five innings in a series. Rahul Dravid made five such scores against England in 2005-06. Navjot Sidhu did it in the Border-Gavaskar Trophy series in 1997-98 and Sunil Gavaskar did it in England in 1979. Kohli has scores of 40, 49 not out, 167, 81 and 62 in this series so far.