Indian Polity · Polity

With reference to the nature and enforceability of Fundamental Rights under the Constitution of India, consider the following statements: I. Fundamental Rights are enforceable through writs issued by both the Supreme Court and the High Courts. II. Certain Fundamental Rights can be restricted by the State on grounds expressly mentioned in the Constitution. III. During a National Emergency declared on grounds of war or external aggression, all Fundamental Rights automatically remain enforceable without exception. Which of the statements given above are correct?