I got to watch the episode of Nov 18th yesterday. I am sorry and with all due apologies to the Twinkle fans, please allow me to say that Twinkle's singing was one of the worst of SRGMP. She attempted to sing "Pyar To Hona hi Tha.." and she was nowhere near the pitch or feel of the song. I read few comments by her fans and others and even JL mentioned that it was a difficult song, and so was "Laagi tumse Man ki Lagan". Sharib could not start from the right node but still he did more than justice to that song, comparing that Twinkle simply screwed up this song. She did not appear to be a contestant to be in the last 11 as simple as that.
It appeared as if she is in some kind of "pain" while singing that song and was hoping that somehow the song finishes quickly and she is out of that problem. If she appeared in so much of problems what about us? I do not think that she knows singing better than many others who were eliminated earlier.
I remember that in the very beginning I had mentioned that she will be exposed more and more as it progresses. I am more than sure that had she sung this song in one of the earlier rounds before judges or mentors, she HAD to be eliminated. But she is lucky that she did not and somehow has survived so far. She is even more luckier that now with SMS voting in place, with her get up and "tantrums" she must have appealed the class of audience who matter the most and unfortunately do not vote only based on singing. That will let her survive.
I particularly feel that her voice is not like other trained singers, it chokes and is husky at many points. Also she doesn't seem to be having a classical background.
Expressions, performance, confidence or overconfidence can not substitute for the very basic "singing", which this competition is all about. Period.