In my opinion, if revanth manages to sing like laal ishq performance witgout obvious mistakes and in sur, no classical singing or harkats will stop him, he will have a smashing win.
But if he continue to sing like today episode and sukhwinder episode... i mean if he is blatantly obviously out of sur, then only other people will have chance to win.
I hope he wont experiment toomuch in finals and sings best in what he can sing.