The authority to issue writs for the enforcement of Fundamental Rights in India is vested with the Supreme Court under Article 32 and with the High Court under Article 226 of the Constiution.

Right to education has been included as a Fundamental Right under Article 21A and under the category of right to life and personal liberty.

Under the provisions of international covenant on economic, social and cultural rights, states are not obliged to have equal share in means of production.

In India, writ of mandamus will not lie upon the President and the Governor of a State in their personal capacities.

In Vishaka Vs. State of Rajasthan, the Supreme Court held that sexual harassment in the workplace is a violation of Articles 15 and 21 of the Constitution and gave directions on the subject to the state to frame guidelines.

As regards to Article 20 of the Universal Declaration of Human Rights, everyone has the right to freedom of peaceful assembly and association.

Right to development implicitly supposes that the states will mutually assist each other when external factors impede the effective implementation of rights.

Austin said, “Liberty and right are synonyms. In liberty, the leading idea is the absence of restraints whereas in case of right, protection of it is the predominant consideration." 

Hugo Grotius said, “Now, the law of nature is so unalterable that it cannot be changed even by God himself. For although the power of God is infinite, yet there are some things, to which it does not extend… Thus, two and two must make four, nor is it possible otherwise, nor again, can what is really evil not be evil.”

In Apparel Export Promotion Council Vs. A. K. Chopra, the Supreme Court observed that the courts must forever remain alive to the international instruments/conventions and apply the same to a given case where there is no inconsistency between the international norms and the domestic law occupying the field.

Under Aricle 7 of the International Covenant of Civil and Political rights, “No one shall be subjected to torture or cruel, in human or degrading treatment or punishment. In particular, no one shall be subjected without his free consent to medical or scientific experimentation".

The United Nations’ activities relevant to Human Rights over the years fall into distinct categories that are standard settings, promotional activities and humanitarian functions.

Second-generation, “socio-economic” human rights, guarantee equal conditions and treatment.

The observance of Human Rights and implementation of fundamental freedoms is the special concern of the Economic and Social Council.

1, 2, 3 and 4 are correct.