The first T20 match will start tomorrow. In total three T20 games would be played by these two. This is an essential series for both teams preparing for the upcoming T20WC. India would like to win this series considering its dismal performance Asia cup. Australia would also like to win this series considering they are the defending champions of the T20WC. In all, it is hard to predict a T20 match but India would have the home ground advantage.
Sure, you can watch this match live if you are living in India or Australia as the match will be on the national sports channels. Globally also there will be wide coverage of this match.
By the way, this will be an interesting series as both teams are strong and rivals. Also, this is a very important series between the two teams before the T20 world cup an neither team will want to register the loss before the World cup.