KL Rahul isn't going to reveal his batting position. He is likely to open the innings with Yashasvi Jaiswal for the second successive Test following their successful partnership in Perth but he's not willing to spill the beans.

Captain Rohit Sharma will bat down the order at No.5 or 6 in such a scenario.

"I've been told (about my position)," Rahul said in Adelaide on Wednesday. "But I've also been told not to share it. We'll have to wait for day one or maybe when the captain comes here tomorrow."

Rahul, however, admitted that having had to bat at different positions in his Test career hasn't been easy. He has found it hard to negotiate the "first 20-25 balls" whenever he was slotted in a new position.

“I have batted in many positions. Earlier it was a bit of a challenge, not technically but mentally about how to play those first 20-25 balls,” he said. “How early can I attack? How much do I need to be cautious? Those were things that were tricky early on. But now that I have played in Tests and ODIs all over the place, it has given me an idea of how I want to manage my innings.

“Whether I am batting at the top of the order or in the middle, if I can manage the first 30-40 balls at the start, everything then seems like regular batting, that’s what I try to focus on..."

Rahul, who made his Test debut in Australia a decade ago as a middle-order batsman, opened the innings in Perth in the absence of Rohit and scored 26 and 77.

Asked about his preferred position, Rahul said: “Anything (opening or middle order)… I just want to be in the playing XI, which means wherever. You go there and bat and play for the team.”

But Rahul is ready for his first pink ball Test.

"This will be my first pink ball Test match so I don't have as much experience as some of the other players who've played. For us it is just about speaking to the guys who played and finding out about what were the things they found hard... if there were any changes that they made," Rahul said.

"For me, it's exciting because it's my first pink ball game. So I'm going in with a clean slate and I'll go there and see what really happens. And try and face up to whatever comes my way.

"In whatever little we've trained and played in the practice game, I felt like it was just a little different to the red ball in terms of how well you see the ball and how well you pick up the ball from the bowler's hand.

"That's been a bit of a challenge but we've got a bit of time, we've been training hard and hopefully by the time the game starts we'll have had enough practice sessions and gotten used to what the pink ball does," Rahul said.

"These (last) few days have only been about understanding how the ball reacts and how easy or hard it is to play against the pink ball. If you look at all the games that have been played with the pink ball, it hasn't really lasted a long time. There will be a lot of help for the fast bowlers, and there will be a lot of seam movement."