Kumble made it clear that the team will allow Hardik to "express himself" as an all-rounder who can be the potential fifth bowler and was unequivocal about team management fully backing talented Karun if he gets an opportunity.
Asked about Hardik, the legendary spinner sounded very positive.
"Hardik is an extremely talented player. Even when he first came into IPL, he showed what he was capable of. Yes, the shorter format is different but we have all seen the potential that Hardik has. Whether it is a short glimpse in a T20, or whether when he bowled at Dharamsala (3 wickets)or batted at Delhi (30 plus runs). That's why we have backed him to get him in the Test squad," Kumble said.
"We all understand the importance of a fifth bowler. And if someone can bowl at 140 and give option of batting well lower down the order, we are really looking at how Hardik develops. We are going to give all the freedom to express himself whenever he gets the opportunity. Quality player whom we will back, nice thing to have an all-rounder in the squad."
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When the discussion veered towards whether Karun Nair, who could be a possible choice as the sixth specialist batsman is being considered, Kumble was equally positive in his response without playing the ball.
"We haven't looked at combination. Karun is someone we have kept close eye on, backed him for all good things that he has done. I am sure he will get an opportunity. We want to back him to get runs as he has done for Karnataka."
"You can look at history. Look at the way you want to. It's new England and Indian teams. Yes, some players played in last series but for us, what is really good has been we have been playing Test cricket. Apart from 5 ODIs and couple of T20s in Florida, it has been seven Tests in a row, we have seen development of our team in these matches and that's (a) healthy (sign).
Questioned about comparative quality of the New Zealand and England, Kumble said he was more happy that his team is showing adaptability in various conditions.
"New Zealand was a hard-fought series. The results show 3-0 but we exactly know how hard it was. It was really nice that all three surfaces were different. Team adapted well to conditions. That's our strength. We are certainly looking at opposition's strength and weaknesses."
The coach termed Alastair Cook and Joe Root as two batsmen that they have to watch out for but reminded that bowling attack of the visitors also need to be looked at.
Kumble said that Rajkot strip looked a good surface.
"This is the first Test match happening at Rajkot. It's a new stadium. We have played ODIs and T20 but in Tests, we don't know how the wicket will be. It looks a good surface. We still have a couple of days to go for combination."
In a nutshell, Kumble wants his team to execute plans exactly like they did against New Zealand.
"It's been a really good experiment which is happening in the series. Overall the players are satisfied with the outcome. I don't think it is a matter of scorekeeping - of saying which team has got it better.
"What is important is whether at that point of time did we take the right call. I think we have done so in the last three Test matches. It has added balance that you would expect in international cricket."
"All I can say is that the fitness parameters of the current Indian team is the best that has ever been. I played in the 1990's when fitness and strength conditioning were personal and not team choices. Post 2000, the culture changed and you can see the difference now; it's part and parcel of team.
"Personally speaking, I probably I was my best fitness-wise after I came back from my shoulder injury in terms of what I could do on the field and recover. I am sure it is a personal opinion but as a coach, and also on behalf of the current Indian coaching staff, plus trainer and physio., we are more than happy to sit and clarify with Dilip (Vengsarkar), who is someone I respect and he also holds a responsible position as director of NCA. Since I am in Mumbai I don't mind sitting across and discussing," he said.