Yes you're right in this regard. In fact this statement led me to ask this question but in many cases the letter issued is based on a predefined template and hr assistant doesn't bother customizing the template and so I asked other users about it. Anyway I have asked a senior also and he says there will be only one interview but I personally think there is a chance for a final interview. I don't know whether they conducted single or multiple interviews in 2011 so I have to take other users' words about it. Have you any authentic news about it which you'd like to share, bro?