Do you guys know Arpita behaves the way she does? Because she is desperate to win. As a winner of Sa Re Ga Ma Pa last year, she got nowhere. She just has one song in a Hindi movie which flopped and that song did not appear in the movie, only the CD. She has moved from Delhi to Mumbai as a career move, and is hoping that FG will open more doors. She cannot afford to lose, it will hit her ego hard.
Also, I don't think she should even have been allowed to compete. She is a playback singer, even if it is just one song, and treats it as a full-time job, compared to others who have studies or work to go back to and worry about.
And I don't know why Sony never mentions that she is a previous winner of SRGMP.