Steve Smith continued his revival with a magnificent century as he and Australia's bowlers put the hosts firmly on top against India after day two of the fourth Test in Melbourne.

After ending a run of 26 Test innings without a ton in the third Test in Brisbane, Smith followed up with a belligerent 140 to help Australia post 474 in their first innings.

It was the 34-year-old's 34th Test century and moved him up to joint seventh on the all-time list, in a five-strong group that includes Brian Lara and Sunil Gavaskar.

Smith's knock included a crucial 112-run partnership for the seventh wicket with captain Pat Cummins, who hit 49.

India skipper Rohit Sharma's poor run of form with the bat continued when he fell for just three off the bowling of Cummins at the start of India's reply.

The Australia skipper then bowled KL Rahul with a beauty just before tea to leave India reeling on 51-2.

Yashasvi Jaiswal and Virat Kohli steadied the innings with a partnership of 102 before a desperate mix-up saw Jaiswal run out for 82.

Scott Boland then removed Kohli for 36 and Deep for a duck as India limped to 164-5 at the close, still trailing by 310 runs.

Read the full match report here.

Australia have moved into a dominant position on day two of the fourth Test. Here is what you need to know:

• Steve Smith hit a magnificent 140 to help Australia post 474 in their first innings.
• Smith's second century in as many Tests featured 13 fours and three sixes.
• He put on 112 for the seventh wicket with Pat Cummins, who was eventually dismissed for 49
• Smith fell in bizarre fashion, with an inside edge onto the pads rolling back onto leg stump and nudging off the bail
• Jasprit Bumrah the pick of the India bowlers taking 4-99
• Cummins then removed Rohit Sharma and KL Rahul as visitors slipped to 51-2

Australia will begin day two on 311-6 after a thrilling opening day of the fourth Test against India in Melbourne.

Teenager Sam Konstas lit up the MCG with hit a pulsating half-century on his Australia debut.

The 19-year-old opener, Australia men's youngest Test batting debutant since 1953, smashed 60 from 65 balls, featuring six fours and two sixes.

Konstas was also involved in a heated confrontation with India's Virat Kohli, clashing shoulders with the India batter at the end of an over, before departing to a standing ovation after being trapped lbw by Ravindra Jadeja.

Fellow opener Usman Khawaja rediscovered his form, hitting a first half-century in 12 innings before departing for 57 after lunch.

Marnus Labuschagne and Steve Smith then put on 83 for the fourth wicket as Australia pressed home their advantage in the evening session.

But Labuschagne's departure for 72 led to Australia losing three wickets for just nine runs, with the lively Bumrah removing Travis Head and Mitchell Marsh in quick succession.

Akash Deep then took the late wicket of Alex Carey for 31 with the new ball to set up a potentially pivotal first session on day two.