First of all, erratum to your post. You are forgetting the greatest President India has had, Dr. Rajendra Prasad. You should mention him before Dr. Radhakrishnan or Dr. Kalam. Secondly, please go and check the Indian Constitution about what the post of the President of India requires. It is not an office of public election. Third, stop playing Southern politics here. We have seen enough of TN politics on TV already.