The phrase "Unity in Diversity" was coined by Jawaharlal Nehru, the first Prime Minister of independent India. Nehru used this phrase to describe the unique characteristic of India, where people from diverse cultures, religions, languages, and ethnicities coexist harmoniously. The concept highlights India's strength in its ability to maintain unity despite its vast cultural and social diversity.
Here's why the other options are incorrect:
- Option (1): Shaheed Bhagat Singh: Bhagat Singh was a revolutionary freedom fighter who played a significant role in India's struggle for independence. However, he did not coin the phrase "Unity in Diversity." - Option (2): Mahatma Gandhi: Mahatma Gandhi was a key leader of the Indian independence movement and advocated for nonviolence and unity. While he emphasized the importance of unity, he did not specifically coin the phrase "Unity in Diversity."
- Option (3): Jawaharlal Nehru: This is the correct answer, as Nehru introduced the phrase "Unity in Diversity" to encapsulate India's unique identity as a nation with immense cultural and social diversity.
- Option (4): Sardar Vallabhbhai Patel: Patel was instrumental in integrating princely states into the Indian Union and maintaining national unity. While he worked towards unity, he did not coin the phrase "Unity in Diversity."
Answer: $\boxed{\text{Jawaharlal Nehru}}$