Australia tour happened two years ago. Why you want to live in the past? Players like Kohli, Hard dick, Rahane, Siraj and Pujara are constantly underperforming ever since then. Since Kohli was the captain, he persisted with these people and never allowed any younger players to replace them. Only after he was dropped, promising youngsters like Venkatesh Iyer and Suryakumar could find a place in the playing XI. India is a country with 1.4 billion population and cricket is the favorite sport by a distance. If they can't perform well even in cricket, then a few questions will be asked.
Muhammad Siraj is still in squad for test series against SL. Muhammad Siraj must take this opportunity seriously else he will be dropped like Pandya, Rahane and Pujara. Once you are dropped from squad and asked to play in domestic to prove your fitness and form it becomes difficult to find your place in squad.
Kohli is in squad for SL test series but not for T20 series. Kohli will be very soon a history if he stayed in his current form for few more series.