Who famously described the Right to Constitutional Remedies as the very \"heart and soul\" of the Constitution of India, highlighting its central importance for protecting fundamental rights?

Introduction / Context:
The Right to Constitutional Remedies, contained in Article 32 of the Constitution of India, allows individuals to approach the Supreme Court directly when their fundamental rights are violated. This right is so central that one of the principal architects of the Constitution described it as the \"heart and soul\" of the Constitution. This question asks you to identify the personality who used that powerful phrase, which is frequently quoted in discussions on Indian constitutional law.

Given Data / Assumptions:

• The right under discussion is the Right to Constitutional Remedies, mainly Article 32.
• The options are M. K. Gandhi, J. L. Nehru, B. R. Ambedkar, and Dr. Rajendra Prasad.
• We assume awareness that the phrase \"heart and soul of the Constitution\" is a famous quote in Indian polity.
• The question is about attribution of this remark, not about the content of Article 32 itself.

Concept / Approach:
Dr B. R. Ambedkar, the Chairman of the Drafting Committee of the Constituent Assembly, repeatedly emphasised the importance of Article 32. He stated that if he were asked to name one article of the Constitution that he could not renounce, it would be Article 32, because it gives life to the fundamental rights. He called the Right to Constitutional Remedies the \"heart and soul\" of the Constitution. This makes it clear that the correct answer is B. R. Ambedkar, not the other leaders listed in the options.

Step-by-Step Solution:
Step 1: Recall that Article 32 allows individuals to directly approach the Supreme Court for enforcement of fundamental rights.Step 2: Remember the famous quote describing this right as the \"heart and soul\" of the Constitution.Step 3: Associate this quote with Dr B. R. Ambedkar, who, as Chairman of the Drafting Committee, spoke at length about the importance of Article 32.Step 4: Compare the names in the options and confirm that Ambedkar is the one linked with this specific expression.Step 5: Select 'B. R. Ambedkar' as the correct answer.

Verification / Alternative check:
Polity textbooks and commentaries on the Constitution routinely refer to Ambedkar's speech in the Constituent Assembly where he called Article 32 the \"heart and soul of the Constitution\". This quote is one of the most frequently used in questions about fundamental rights. Neither Mahatma Gandhi, Jawaharlal Nehru, nor Dr Rajendra Prasad is associated with this particular phrase in the context of Article 32. Thus, cross-checking in multiple standard sources confirms that B. R. Ambedkar is the correct answer.

Why Other Options Are Wrong:

• M. K. Gandhi: Gandhi was not a member of the Constituent Assembly and did not participate in the formal drafting debates in the same way.
• J. L. Nehru: While Nehru played a key role in freedom struggle and constitutional development, this specific phrase about the \"heart and soul\" is not attributed to him.
• Dr. Rajendra Prasad: As the President of the Constituent Assembly and later the first President of India, he had important roles, but this famous remark about Article 32 came from Ambedkar.

Common Pitfalls:
Some candidates confuse different quotes attributed to various leaders during the making of the Constitution. Because Gandhi, Nehru, Ambedkar, and Rajendra Prasad are all key figures, it is easy to misattribute notable phrases among them. To avoid this, remember a simple association: Ambedkar and Article 32 go together, with the phrase \"heart and soul\" as a strong link in exam questions.

Final Answer:
The leader who called the Right to Constitutional Remedies the \"heart and soul\" of the Constitution of India was B. R. Ambedkar.