I have seen Raja Hassan performing on a few other shows, and he is a very good singer. Infact I prefer a few songs performed by him over the original versions, but his performance was really not as good as his older ones. Lets just hope, he gives a good performance soon.
Raja is a fantastic singer, but his performances in the first show were mediocre and average, nothing too glorious there. I hope he returns to his full form in the coming weeks!