India is purely dominated by Politicians. Even if Dr.APJ is a president he is just a president who will do ever thing based on the ruling part's recommendation.
If you think deeply, you can understand the fact that if a guy who is selected by a politicians will always do things for them only. He wont act independently. That is the case for Dr,APJ as well. If at all if he continued in Anna Univ he might have done some thing for the country.