If you are threatening us then let me tell you we fear no one but God. If any muslim fears anyone other than God is obviously not a muslim. So your threats appear hollow to us. We dont need to be thankful to anybody, we have not come to India from outside, we dont look like arabs or europeans, we dont speak their language and we are purely indigenous to India. Why should we be thankful to you for something that belongs to us for the period of known history ?