Step 1: Understanding the Question:
This is a general knowledge question asking to identify the first Chairman of the Planning Commission of India.
Step 2: Detailed Explanation:
The Planning Commission was an institution in the Government of India, which formulated India's Five-Year Plans. It was established on 15 March 1950.
By convention, the Prime Minister of India served as the ex-officio Chairman of the Planning Commission.
The first Prime Minister of India, who took office in 1947 and was in power when the Planning Commission was established in 1950, was Jawaharlal Nehru.
Therefore, Jawaharlal Nehru was the first Chairman of the Planning Commission.
Note: The Planning Commission was replaced by the NITI Aayog (National Institution for Transforming India) on January 1, 2015.
Step 3: Final Answer:
The first Chairman of the Planning Commission of India was Jawaharlal Nehru.