Explanation:

The first defence minister of independent India was Baldev Singh, who served in Prime Minister Jawaharlal Nehru's cabinet during 1947–52.  Baldev Singh was an Indian Sikh political leader, he was an Indian independence movement leader and the first Defence Minister of India. Moreover, he represented the Punjabi Sikh community in the processes of negotiations that resulted in the independence of India, as well as the Partition of India in 1947