The hyped Australia-India Test series was a commercial success but it was a bittersweet feeling for smaller cricket nations unable to regularly play the expensive format.

India's 3-1 defeat in Australia exposed the fragility of their top order, but equally unmissable was how much they rely on pace spearhead Jasprit Bumrah, who gave it all until he broke down in the series finale in Sydney.

Indian cricket fans and pundits heaped praise on stand-in skipper Jasprit Bumrah on Sunday, but questioned the future of several veteran players after their team lost 3-1 to Australia in a gripping five-Test series.

Tough decisions might need to be made for India's slumping Test cricket team in desperate need of a reboot after falling away in Australia.