The correct answer is option 3: Internal disturbance.

According to Article 352 of the Constitution of India, the President of India has the power to proclaim three types of emergencies: (1) National Emergency, (2) State Emergency, and (3) Financial Emergency. The circumstances for proclaiming a National Emergency are mentioned in Article 352(1):

- War: If there is a war or an external aggression that poses a threat to the security of the country, the President can proclaim a National Emergency.

- External aggression: In case of an external aggression or an armed rebellion, which poses a threat to the security of the country, the President can declare a National Emergency.

- Internal disturbance: The option 3 mentioned in the question, Internal disturbance, is not a circumstance for proclaiming a National Emergency. Internal disturbances, such as riots or civil disturbances, are usually handled by the state governments, and a National Emergency is not required for such situations.

- Armed rebellion: If there is an armed rebellion against the state governments, the President can proclaim a National Emergency.

In summary, option 3 - Internal disturbance is not a circumstance for proclaiming a National Emergency under Article 352 of the Constitution of India.