Rohit Sharma as the fifth bowler. Can't find a photo of his bowling action in an India match as back up, though. May do a Nathan Astle or Chris Gayle for India in this series, until they find someone fuller. He's also stroking the ball more freely.
Expect Vinay Kumar to play all four Tests. With neither Zaheer nor Ishant fully fit, one may play, break down (or have a hint), and then the other will come in. He's also the only one of the extras (himself, Mithun, Ojha) who isn't really a mouse and is somewhat more useful, with loads of FC experience, multiple trips down under, capable batsman and fielder, good form on the way here.