Well, I have taken one extra field and set the value of the field as "1", Only when a user clicks on the button.
Now, on the intialize event I wrote script as:
if(field.rawValue == "1"){
Button.presence = "hidden"
}
When happens next: For the first time it works absolutely fine, when I close the form and re-open that again, the Button becomes visible and the value of the field becomes "null".