Answer:
The Indian Constitution has several features, which were borrowed from various other countries. For instance, the parliamentary form of government, bicameralism and legislative procedures from the United Kingdom; the fundamental rights, independent judiciary and the process of removal of Supreme Court judges from United States of America; the ideals of liberty, equality and fraternity in the preamble from France; the Federation with a strong Centre from Canada; the Directive Principles of State Policy from Ireland; and the idea of socio-economic and political justice from erstwhile USSR.
Despite the presence of these borrowed provisions, the Indian Constitution remains unique, as can be observed below:

• Lengthiest written constitution: While the UK had no written constitution, the American Constitution had just seven articles and the Australian Constitution comprised of 128 articles, India gave itself a comprehensive constitution which initially had 395 articles and is now extended to 470.
• Constitutional Sovereignty: Though India adopted a Parliamentary form of government as existed in the UK, it is the Constitution that is sovereign in India and not Parliament. The Indian Parliament cannot give itself a new constitution. It can just amend the existing constitution and that too without compromising on its basic structure.
• Fundamental Rights with restrictions: Unlike the USA, Fundamental Rights granted in India are not absolute. They are subject to certain restrictions. The Indian Constitution seeks to strike a balance between individual liberty and social interests.
• A federal system with unitary bias: The idea of federalism in India is borrowed from the Canadian federal system. However, in India, the Centre becomes strong enough to usurp the power of states only in case of emergency. Under normal circumstances, both the Centre and the states work within the constitutional domain demarcated for them.
• Independent but Integrated judiciary: Unlike the USA, where the federal laws are enforced by the federal judiciary and the state laws are enforced by the state judiciary, the Indian constitution provides for an integrated judiciary, headed by the Supreme Court at the Centre and the High Courts and subordinate courts at the state and district level, which enforce both central as well as the state laws.
• A blend of rigidity and flexibility: In comparison to the constitutions of the USA and Australia, the Indian Constitution is flexible. However, on issues related to centre-state relations, the Constitution is rigid.
• The wider scope of the DPSPs: In India, the DPSPs include not only economic rights as in Ireland, but also principles relating social justice, economic welfare, foreign policy, and administrative matters.

Thus, the Indian Constitution is not merely a borrowed document. It reflects the sagacity and the foresight of the founding fathers who have tailored it according to the needs of the country and its people.