If that's bounce spin wickets, then this is going to favour Australia. India will continue with the same squad, maybe pacers will be changed. Whether it is bowling, batting or any other position it isn't easy to prove the skills in two matches. They need to be given time, in that way Bharat needs to be given more matches only then he'll understand well about players and change his play accordingly. Switching between players often couldn't let them do the best.
Fourth and final test match which is going to play At Ahmedabad on 9th March with India is already leading the series by 2 - 1 and in case of this match won by Australia, India will still hold the BGT as they were last time winner I need to few changes in this Indian team because this is good time for the selectors to bring youths for big occasions and rest the few veteran players which are not performing as we need to have their performance because while you are already winner and have chance to bring your best new players for the future here they can take this risk which will give them good advantage for the future games as well.
Even most chances nothing is going to happen but still they can think about this all and youngsters surely will give their best and try to have positive change for the Indian batting which is currently struggling badly specially against spinners from Australia.