Behaviouralistic thinkers accept only behaviouralistic study methods to study Political Science. They do not gived any importance to other study methods. In this regard, the famous thinker Sibli thinks that, If study of Political Science is not to be done only on the basis that what could be the behaviour of a man in the given circumstances, but on the basis also that what is he today what was he yesterday, what he would be tomorrow and what should be, then only behaviouralism would be more useful and practical.
We need to take help from history of political thinking, policy making, philosophy, cultural history, imaginative political philosophy of traditionalism. Political development directs political experiences and political explanations”.