India, March 5 -- Varun Chakravarthy was among the few playing XI regulars to turn up for India's pre-match optional practice day on Wednesday, at the Wankhede Stadium. A long single-wicket workout, overseen by India's bowling coach Morne Morkel, has been his pre-match day routine for much of the T20 World Cup.

On other training days, he has tested himself against the big batting blades of his teammates. Chakravarthy has done plenty of bowling to prepare for matches.

In-tournament practice is such an individual thing. Jasprit Bumrah rarely exerts himself. Even with spinners, not everyone wants to turn up for every session. Then there are perfectionists who are hard on themselves. India's mystery spinner is one from that breed.

But the ...