The loss of momentum in the next 8 overs due to the rapid loss of wickets meant that the R-B rate was always high. Despite MSD and Ashwin's partnership, the difference could not be brought down by the end of the match.
The pitch gave help to the slower bowlers of Australia in the second innings making the score became larger. No wonder then that the final difference was 31 runs. The younger players were playing only their first match on the tour - they will only get better. Let us hope the next match is won by the Indians to tie the T20I series.