Explanation: The first Defence Minister of Independent India was Baldev Singh, who held the position from 1947 to 1949. This role was critical in the early years of the nation, as India faced numerous security challenges, including the partition of the subcontinent and the integration of princely states into the newly formed nation.
Baldev Singh was a member of the Indian National Congress and played a significant role in the Indian independence movement. He was appointed as the first Defence Minister by Prime Minister Jawaharlal Nehru, who formed the first cabinet of independent India. The Defence Ministry was established to oversee the armed forces and ensure the security of the nation in the face of internal and external threats.
It is important to distinguish between the roles of different key figures in the early years of independent India. For instance, K C Cariappa, while a significant military leader, was the first Indian Commander-in-Chief of the Indian Army, not the Defence Minister. Sardar Patel, another prominent figure, was instrumental in the integration of princely states but did not hold the position of Defence Minister. Rajagopalachari, known as Rajaji, was a key political figure but served in other capacities, such as the last Governor-General of India and later as the Chief Minister of Madras State.
Understanding the roles and contributions of these individuals is crucial for comprehending the complex political landscape of early independent India. Each played a unique and significant part in shaping the nation, but only Baldev Singh held the specific role of the first Defence Minister, making him the correct answer to this question.