Consider the following statements with respect to the ordinance making power of the president of India :

1. The ordinances have the same force and effect as an act of Parliament.

2. President can promulgate an ordinance only when both the Houses of Parliament are not in session or when either of the two Houses of Parliament is not in session.

3. An ordinance can be issued only on those subjects on which the Parliament can make laws.

Which of the statements given above are correct?