Emergency powers of President in case of State emergency

Emergency powers of President in case of State emergency:

-President's rule is declared when:

---Constitutional machinery has failed in the state (By Article 356 )
---The state is not working according to the given direction of the Union Government. (Article 365)

-Such an emergency must be approved by the Parliament within a period of 2 months.

-It can be imposed from six months to a maximum period of three years with repeated parliamentary approval every six months.

-However, after one year it can be extended only if:

---National Emergency has been declared in the country or in the that state.
---The Election Commission finds it difficult to organise an election in that state.

-If the emergency needs to be extended for more than three years, this can be achieved by a constitutional amendment, as has happened in Punjab and Jammu and Kashmir.