Explanation: The Prime Minister of India is the head of the government and plays a crucial role in the functioning of the Indian political system. The position is held by the leader of the majority party or coalition in the Lok Sabha, the lower house of the Indian Parliament. The Prime Minister is appointed by the President of India and is responsible for the day-to-day administration of the government.
Charan Singh, the correct answer, served as the sixth Prime Minister of India. He was a prominent figure in Indian politics, known for his work in the field of agriculture and his role in the Janata Party. Charan Singh's tenure as Prime Minister was brief, lasting from July 28, 1979, to January 14, 1980. His appointment came after the fall of the Janata Party government led by Morarji Desai, and he was chosen to form a government with the support of the Indian National Congress (Indira). However, this support was short-lived, and Charan Singh's government collapsed after a few months.
It is important to note the sequence of Prime Ministers to understand the political history of India. The first Prime Minister was Jawaharlal Nehru, who served from 1947 to 1964. After Nehru, Lal Bahadur Shastri served as the second Prime Minister from 1964 to 1966. Indira Gandhi then became the third Prime Minister, serving from 1966 to 1977 and again from 1980 to 1984. Morarji Desai was the fourth Prime Minister, serving from 1977 to 1979, and Charan Singh followed as the sixth Prime Minister.
Understanding the sequence and tenure of Prime Ministers is essential for comprehending the political landscape of India and the various political parties and coalitions that have shaped the country's governance. Each Prime Minister has contributed to the development and challenges faced by India, and their tenures reflect the political dynamics and social changes in the country.