Steve Smith has rewritten cricket’s record books as his sublime summer with the bat continued with another Test century against India at the SCG.

The Australian captain swatted a full toss on his pads from Umesh Yadav through mid-wicket for four to bring up the milestone on the final ball of the 100th over on Wednesday.

Smith ran the length of the pitch before taking off his helmet and acknowledging a standing ovation from his Australian teammates and the crowd.

He then looked to the heavens and raised his bat as a tribute to Phil Hughes, struck and killed by a bouncer at the SCG in November.

After starting the day on 82 with Australia at 2-348, Smith picked up where he left off from day one, moving quickly through the 80s and 90s on the back of a succession of boundaries.

It is Smith’s fourth Test ton in successive Tests after he hit 162 not out in the first Test in Adelaide, 133 in the second Test in Brisbane and 192 in the Boxing Day Test in Melbourne.

The stand-in skipper has become the first captain in the history of Test cricket to score centuries in his first three matches as captain.

The 25-year-old joins Jacques Kallis as the only player to score a hundred in every Test of a four Test series.

The former South African allrounder managed the feat in the 2003/04 home series against the West Indies.

Smith also now joins Sir Donald Bradman, Neil Harvey, Jack Fingleton and Matthew Hayden as the only Australian batsmen to score hundreds in four or more successive Tests.

“He is certainly making batting look extremely easy,” injured Australian skipper Michael Clarke said in his role as a commentator on Channel Nine.

“He is that confident at the moment.”

Smith has so far scored 692 runs in this series against India.

At the drinks break for the morning session of day two, Australia had moved on to 2-396, with Smith on 110 from 181 balls, including 14 boundaries.

Shane Watson is the other not out batsman on 78 off 169 balls.