The correct answer is: Part III containing Fundamental Rights (Article 12 to 35).
Part III of the Indian Constitution is described as the Magna Carta of India because it contains the fundamental rights of the citizens of India. These rights are guaranteed by the Constitution and cannot be taken away by the government. The fundamental rights include the right to equality, the right to freedom, the right against exploitation, the right to freedom of religion, cultural and educational rights, and the right to constitutional remedies.
Part IV of the Indian Constitution contains the Directive Principles of State Policy. These principles are not enforceable by the courts, but the government is supposed to follow them while making laws and policies. The Directive Principles include the principles of justice, economic development, and social welfare.
Part II of the Indian Constitution contains the provisions relating to citizenship. It defines who is a citizen of India and the rights and duties of citizens.
Part IV of the Indian Constitution contains the Fundamental Duties of citizens. These duties are not enforceable by the courts, but citizens are expected to follow them. The Fundamental Duties include the duty to respect the Constitution, the duty to uphold the sovereignty and integrity of India, the duty to defend the country, and the duty to promote harmony and the spirit of common brotherhood among all the people of India.