Found an excerpt from B Raman's book on Terrorism: Yesterday, Today & Tomorrow being published by Lancer Publishers towards the end of May 2008 explaining about soft targets.
Makes an interesting read. In a vast country like India, close interaction between the various law and order machinery is essential. However, this is hardly the case in India. And it seems states are resisting the attempt to form a single agency to investigate and prevent terror acts all over the country. Our ministers are more concerned about wielding authority than to form an effective agency to combat terrorism. Sad.