Kohli, who smashed 204 on the second day of the ongoing one-off Test against Bangladesh in Hyderabad, said captaincy has helped him go for longer innings in Test matches.
"I don't know, I think it is because of captaincy that you tend to go on more than what you usually would as a normal batsman. I think the room for complacency is no more present when you become captain. So, that has something to do with me playing long innings," the 28-year-old right-handed batsman said.
En route his 204, Kohli became the first batsman in the history of Test cricket to claim four double hundreds in as many series. In the process, he surpassed the legendary Sir Don Bradman and Rahul Dravid, both of whom had three double hundreds in successive series.
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The Indian captain said that he's is no longer satisfied with Test hundreds and his fitness level allows him to play for longer innings and eye bigger scores.
"I worked on my fitness level over the years and I feel I can go for longer periods now. I don't get tired as much as I used to before. Definitely, I don't get satisfied when I get a Test hundred which used to be before, because I used to give too much importance to Test cricket separately. Now I have started to treat it as any game of cricket and I have to keep going on till the time the team needs to," said the Delhi batsman.
"I think mentally you need to focus and think about what you are going to do in the game. Switching to different formats is the need of the hour in these days' cricket. I certainly want to contribute in all three formats. That has always been the mindset and I have to prepare in a certain way. It is more mental than going into the nets."
Kohli could have been out on 180 when Bangladesh off-spinner Mehedi Hasan Miraz got a leg before decision from on-field umpire but on his batting partner Wriddhiman Saha's insistence he went for a DRS request and the decision was overturned and he was able to get to his double hundred.
But Kohli said he was sure he was out leg before and so he did not use the DRS second time when he walked off the field on 204.
"I also felt I was right in front of the stumps. I don't want to use a review because I felt I was plumb in front. Moreover, (Wriddhiman) Saha or (Ravindra) Jadeja might be nearing a milestone (later after him) and they could be using a DRS for themselves as well. So the second one to me I felt I was plumb in front and that was why I started walking briskly as well and no grudges with the umpire either because it happened way too quickly for them to understand where the ball impacted the pad.