Consider the following statements with respect to Directive Principles of State Policy (DPSPs) :

1. They denote the ideals that the state should keep in mind while formulating policies and enacting laws.

2. They are justiciable in nature and help courts in examining the constitutional validity of a law.

3. They resemble the Instruments of instructions enumerated in the Government of India act of 1935.

Which of the statements given above are correct?