I read an article in "The Hindu" which was titled as:
I think there should be "advantaged" instead of "advantage".
Headlines tend to be short, instead of being fully grammatical sentences. This particular headline is not even literally true.
In this example, "Advantage" is not an adjective describing "Australia". Instead, the headline is designed to resemble a description of a tennis score during a game or set.
A tennis match consists of sets, which consists of games. A game needs to be won by two points, and a set needs to be won by either two games, or by winning a tie-breaker game that has special rules. In tennis, the first point has a score of 15, the second point increases the total to 30, and the third point increases the total to 40. After a game reaches a 40-40 tie, it does not matter whether the server has won 3 points or 5 points or 7 points. Instead, what matters is whether the server is ahead, behind, or tied with the server's opponent. This is indicated by saying "Deuce" if the score is tied, or "Advantage" and then the name of the player who is ahead.
So in this example, "Advantage Australia" means that Australia is more likely to win than India. (It literally means that Australia is ahead, but the article later explains that the two countries are tied in a series of cricket games.)
Put as much of that money as you can in tax advantage programs where it can grow either tax-deferred or tax-free, that's your IRAs, your Roths, your 401(k)s.
NationsBank also eliminated fees for 10 banking services for its advantage customers.
You see in these example sentences "advantage" is a Noun which is used as Attributive Modifier. In the Nominal structures, the function of "advantage" is pre-head modifier.
In your example sentence too it's used in the same way. It is not just in the headline, but it can occur anywhere.