Under which Article of the Indian Constitution President’s Rule can be imposed in a State?

Under Article 356 of the Constitution of India, President’s Rule was imposed for the first time in –

If the President of India exercises his power as provided under Article 356 of the Constitution of a particular State, then:

Which one of the following is not a circumstance for proclamation of Emergency by the President of India under Article 352 of the Constitution of India ?

Mainly on whose advice the President’s Rule is imposed in the State?

Which one of the following Articles of the Indian Constitution has not so far been used?