Nathan Lyon has been using the rough patches effectively during the ongoing Indian second innings which is an indicator that R Ashwin will have a bigger role to play during Australia's second innings, reckons pacer Jasprit Bumrah.
India are currently 166 runs ahead with seven wickets in hand and two days of play left in the first Test.
"Ashwin will obviously play a more crucial now role because with the rough, we saw Nathan Lyon using the rough to his advantage. He is an experienced bowler and knows what he has to do. So he will probably work on it and he will play a crucial role for sure," Bumrah said at the end of the second day's play.
India dismissed Australia for 235 in their first innings. It was a collective effort from the bowlers, who shared the spoils.
"We were trying to figure out the lengths that are useful over here. In South Africa and England, there was a lot of lateral movement. Here the wickets are slightly flatter because you get bounce, but you have to be consistent.
"That's the thing we have read over the years. We were trying to focus on that, that if we don't give runs, we are creating pressure from both ends and then we could get wickets," said Bumrah.
Bumrah is confident that India will take a substantial lead on day four.
"I think it is slightly in our favour because the late wicket (Kohli) was a good thing for them. But we have a good lead. First session tomorrow will be a very important. If we capitalize on that, that will leave us in a very good place in this match," the Gujarat pacer said.
Bumrah feels that key to adaptation in overseas conditions was all about doing his homework properly.
"There is no secret, obviously. I try to ask questions to players who have played here before, or wherever they have played. In England, when I was not playing, I was bowling in the nets and I was keeping an eye on what was happening. So I try to copy that in the nets," he said.
Bumrah said that having a lot of ODI overs under his belt did help him before he took the plunge in Test cricket.
"Before South Africa, I was consistently playing one-day cricket. I was bowling and there were a lot of overs under my belt. I always try to learn and always try to ask questions. I try and keep an eye on the opposition as well, what is working for them, maybe try and learn from them.
"All these things always help you - do your research, do your homework, keep an eye on the lengths of the different grounds and different players, what they do. I didn't talk to anyone in particular (for this Australian tour) but watching old footages, what works over here and how they have taken wickets. Watching good spells of old bowlers, what they have done over here, how to get wickets.
"Asking the bowling coach questions and asking the senior players who have come here before who know what to do over here."
Travis Head too said that Ashwin would have a lot of say in the fourth innings.
"I just tried to stay busy against Ashwin. I learned a lot from Dubai first innings to second innings, I was really positive against the off spinner, watching the ball and not premeditating," he said.
"It's going to be the same in the next innings. There's not much rough for the left-handers but this wicket always spins with the grass coverage."
Head was confident that Australia will be able to chase down a 300-plus total, saying it becomes easier to bat on the last two days and such targets have been overhauled in Sheffield Shield cricket.
"This year bigger scores have been made and teams have batted out draws," he said. "On days four and five, it gets easier to bat and 300-plus totals have been scaled easily (in domestic cricket). It's more of a new ball wicket at the moment. It's vital to win those moments when the new ball comes around again," he signed off.