One such instance came on Friday night when he hit a six and a four to seal the game for India after nine runs were needed on the final six balls.
Asked about his process, the team’s designated finisher said creating scenarios in the net helps him perform in the middle.
“Over a period of time I trained for it, I do it for RCB now and I’m happy to do it here, so it’s been a constant routine for a while.
“I do a lot of scenario training and also Rahul (Dravid) bhai and Vikram (Rathour) bhai have been accommodating on how I want to train, what types of shots I want to practice.
“I was very precise with that. I don’t practice too much but I like to keep it as precise as possible,” Karthik said after India tied the series against Australia.
In Game 1, Karthik came to bat after Axar Patel while on Friday he was sent past the left arm spinner.
“I think it’s something we try, there are times when there might be a few overs where an Axar Patel might target a spinner and run them over.
“So that’s kind of logical at this point and having left-handed bowling and spinner leg is a good game. So we try to use that option sometimes.
“So that’s one of the reasons why we try to do it depending on how the game is going at the time,” the 37-year-old said.
Karthik played in front Rishabh pants in the opener but a truncated game allowed management to accommodate the two in the playing eleven for the second T20.
“Today we needed four bowlers to complete the 8 overs because each bowled two, but we actually had five options. So when you have five options, that’s the luxury of having an all-rounder world-class to Hardik Pandya,” Karthik said.
“When Hardik Pandya is there in the 11, then the 11 is very well balanced, an extra batsman or an extra pitcher can play, that’s the luxury you have and that’s what makes it so special.”
The wicketkeeper hitter praised skipper Rohit Sharma who hit 46 of 20 unbeaten balls in the chase. The game was reduced to 8 on a side contest due to a wet outfield.
“He was a terrific striker from Rohit Sharma. On this ground, against new ball throwers, playing such shots is not easy. It shows why he is such a great player, not only in Indian cricket but also in world cricket.
“His ability to bowl fast is unmatched in his world and that’s what really makes him special as a batsman,” he said.
While Pandya has been in sensational form since returning from injury, Axar has also slipped into his all-around role after being included in the squad in place of an injured Ravindra Jadeja.
“There are very few players like him (Pandya) who are able to balance the team and that’s where I think India have been blessed and if he does well it’s always great for Indian cricket,” Karthik said.
“I think Axar Patel is also good with the bat at different times, will help India as it helps the balance of the team.
“Everyone is aware of Rishabh Pant’s batting quality. He would have been very useful in this game. Yes, he couldn’t come back until the end, but we all know what quality he brings to the table. So I think I think India definitely made the right choice in playing Rishabh.”