may be you are right because after don't my research I get to know that it's not very expensive. might b they dont have enough documents and paper work.
Hey Tod, thank you so much for your opinion about it. Even the same thing I was thinking since the time I got my passport back with that stamp on it. Its just that it is the first time I am doing this and I have no clue about anything. So what I read online I became extremely nervous. But I think now I got my answers and thanks for making me feel positive.