Which of the following statements regarding Article 22 of the constitution of India are correct?

1. The fundamental right conferred by this article protects persons against arrests and detention in certain cases.
2. This fundamental right is guaranteed to both citizens and non- citizens.
3. The rights guaranteed under this provisions are applicable to those arrested under laws providing for preventive detention.
4. The rights guaranteed under this article are not applicable to enemy aliens.

Select the correct answer using the code given below:

Article 33 empowers the parliament to restrict or abrogate the fundamental rights of 

1. Members of armed forces
2. Members of para-military forces.
3. Non-combatants' employee of armed forces like barber, carpenters, etc.

Select the correct answer using the code given below:

Consider the following statements regarding writ "Mandamus"?

1. It can be issued by the court to a public official asking him to perform the official duties that he has failed or refused to perform.
2. It cannot be issued against a private individual or body.
3. It can be issued only when the duty is discretionary.
4. It cannot be issued to enforce a contractual obligation.

Which of the following statements given above is/are incorrect?