Some series ratings:
Rahul 2 - one good knock in Adelaide, pretty much nothing else otherwise. Looked a walking wicket and it'll be a while before we see him again.
Vijay 1 - probably didn't look as bad as Rahul did, but had nothing to show for it. A sad end to a career which at its best was really useful for India.
Pujara 9.5 - misses the 10 as he failed at Perth. Otherwise was basically perfect. Reminded me of Cook 2010/11, except this time on somewhat friendlier surfaces and against a more consistent bowling attack. Any concerns about his away record have to be addressed now.
Kohli 7 - kinda underwhelming, but still managed a brilliant ton and a few other good knocks. Plus his captaincy was very good, with excellent use of his bowlers and bowling tactics.
Rahane 5 - like Rahul managed a key knock second innings at Adelaide, but was quiet otherwise. Might be time to look at other options, especially given his struggles in India.
R Sharma 5.5 - actually managed two decent contributions - his 37 at Adelaide was key in avoiding getting blown out for 150-odd by building a partnership with Pujara and the 60-odd was also key in making sure Australia didn't get much momentum - but still not sure if he's actually good.
Pant 7 - still needs work keeping wise, but looks a really dangerous batsmen. Impressively found a way to reign in his slogging instincts in the later Tests and got rewarded with a crucial ton that set up a series win.
Ashwin 7 - tempted to strike him of all of his points for being a fat and lazy prick, but he did bowl rather well at Adelaide.
I Sharma 7 - unlike Bumrah he was merely good but still bowled rather well before showing signs of wear at Melbourne.
Shami 7 - looked fairly dangerous throughout but also threw in some pies for good measure.
Bumrah 9.5 - misses the 10 as I can't realistically give him more than Pujara and he bowled pies first morning at Perth. Otherwise was amazing, looked likely to take a bag of wickets every time he bowled.
Vihari 4 - looks decent but not much by the way of substance. Will get more chances I hope as he might just need some easy home runs to lock down a place.
Umesh Yadav 2 - poor. Just looked a total liability. Had things gone differently picking him ahead of Jadeja would be an ATG clanger.
Agarwal 8.5 - the short ball will cause him some grief and he'll need to work on that. But otherwise a very impressive start to his career. Made a real difference to having Rahul and Vijay up the order.
Jadeja 6 - looked dangerous with lots of rough at Melbourne, but still was far from perfect. The 80 was one of the easier 80's I've ever seen, but it's still runs.
Kuldeep Yadav 8 - on a very flat deck (even against a demoralised and **** batting lineup) looked pretty dangerous. If he can work on his batting probably has the #1 spinner spot locked down for the forseeable future (and I'd probably be picking him ahead of Ashwin at this point).
Harris 6 - the only batsman with two 70+ scores, which says a lot. Did look pretty good unless India pitched it short, but would want a ton against Sri Lanka to lock down a slot.
Finch 2 - good 50 at Perth, but even that relied on some poor bowling from India. Otherwise was useless. Simply not a Test opener in these conditions and that should've been obvious from the first time they saw him.
Khawaja 4 - probably deserves a pass due to his brother's arrest and his knee injury, but apart from glimpses looked fairly bereft of confidence and didn't show much ability to put the pressure back on the Indians....unlike Pakistan for example.
Shaun Marsh 4 - can't even convert his starts to scores of substance these days. Should be time to go but probably won't be.
Handscomb 2 - walking wicket as long as India pitched it full. Looked a little bit better at Sydney but even then didn't kick on.
Head 5.5 - looked fairly OK throughout, but was kinda symbolic of all of Australia's batting problems recently. Needs to find a way to get through the tough periods to kick on to great things.
Paine 5 - kept well, but his captaincy seemed underwhelming (though the quality of side couldn't have helped) and his batting did little (in contrast to a few of his other series).
Cummins 8.5 - looked arguably Australia's most solid bat, which given he was batting 8 is pretty sad. Bowling excellent (especially at Melbourne), though looked tired at Sydney which sees him lose some marks.
Starc 4 - weak link. A few good balls but otherwise was largely trash. Looked especially bad at Melbourne and Sydney. Time to give him a kick up the ass.
Lyon 7.5 - wonderful in the first two Tests, but his figures weren't pretty when India got on top in the last two Tests and seemed a bit bereft of confidence and options for getting them out. Looked a better bat than a few of our specialists.
Hazlewood 6 - underwhelming but still bowled plenty of good spells. Just needs to reduce the number of bad balls quite a bit.
Mitch Marsh 1.5 - at least he kept things tight with the ball. But really should be the last Test he plays for a while.
Labuschagne 4 - did look pretty decent out there, but it's still only a 38. And his bowling was awful, despite getting picked largely on it.