After sauntering to a 4-0 series whitewash over India, Australia captain Michael Clarke says there is still room for improvement in the Test team.

Australia are still fourth on the ICC Test rankings, but Clarke says returning to number one is what the team is aiming for while also making sure they iron out their mistakes on the pitch.

"Are we the leader of the pack? I don't think we are," Clarke said after the fourth Test in Adelaide.

"Right now we're not the number one Test team in the world, so it's about us trying to become better every single day. We will continue like we have done my whole career to look at other teams and see their strengths and weaknesses, and see where we can improve.

"That's been no different my whole career, whether we've been the number one team in the world or sitting in the number four spot. We're playing really well as a group, but we have a lot of work still to do, to achieve what we want to achieve."

Clarke meanwhile proved an inspired leader as his series aggregate of 626 runs was the best of the Australian batsmen and the skipper said it was important for him to lead from the front.

"It was a big series for me for the main reason that I didn't perform last summer," Clarke said.

"I have said since taking over the captaincy that I wanted to lead from the front on the field and make sure I was scoring runs and it's very pleasing to have achieved that this Test series.

"I think I have learnt a lot along the way over the last four Test matches, I think I will continue to learn. It obviously helps when you have got some very good players around you, it makes my job a lot easier. Fortunately we have got some good rewards."