I am not sure, what provoked you to start this thread, but still since you started it needs some discussion..
Your concerns about Hindi Makes sense, and if as a native Hindi speaker, if somebody forces me to speak Tamil, even I will be perturbed.
But lets take it one more level ahead, then if we have to speak English to link with all, why do we need to speak Tamil or Hindi at all..
Still if you see the surveys, about 80% of Indians do not know English at all, and if all the states, start behaving in the fashion propose, and stop learning the second or third language it can be difficult situation..
You land up in eastern India, or Nothern India or western India and they do not Tamil or Hindi and English, how will you communicate, and do you guarntee that even 20% of the people in TN can communicate in English properly.
And above all, we can discuss to choose another National Language by doing surveys, but till the time it is in our constitution, we should respect it, as we respect our Flag and National Anthem.
