Australia enjoyed the home tur advantage making 200 runs in 35 overs loosing its second wicket in 34 th over making it difficult for India to restrain the home team at 250 as projected earlier.
Currently, Finch at 73 and Maxwell at 4 are on the crease testing Indian skills in bowling.
Earlier, Australia won the toss and chose to bat first in the crucial second World Cup semifinal match being played at the Sydney Cricket Ground on Thursday.
If India wins, then it will face the other host of the cup, New Zealand, at the Melbourne Cricket Ground on Sunday.
Australia: 1 David Warner, 2 Aaron Finch, 3 Steven Smith, 4 Michael Clarke (capt), 5 Shane Watson, 6 Glenn Maxwell, 7 Brad Haddin (wk), 8 James Faulkner, 9 Mitchell Johnson, 10 Mitchell Starc, 11 Josh Hazlewood.
India:RG Sharma, S Dhawan, V Kohli, A Rahane, S Raina, MS Dhoni* (wk), R Jadeja, R Ashwin, M Shami, M Sharma, U Yadav.
The match is unique with the teams facing off each other for the first time in a semifinal world cup. Australia is in its high spirits with 12 ODI it won on its home soil and India has won all the seven matches in the world cup so far.