Jawaharlal Nehru headed the Interim Cabinet formed in the year 1946.

Explanation:

The Interim Cabinet was formed on 2 September 1946, as a transitional government between the British colonial rule and the establishment of an independent India. It was formed following the acceptance of the Cabinet Mission Plan by the Indian National Congress.

Key Points:
1. Background: The Cabinet Mission Plan was proposed by the British government in 1946 to address the issue of Indian independence. It aimed to establish a united India with a federal structure and guaranteed rights for religious minorities.
2. Formation of Interim Cabinet: After the acceptance of the Cabinet Mission Plan by the Indian National Congress, an Interim Cabinet was formed to prepare for the transfer of power from British rule to Indian self-governance.
3. Role of Jawaharlal Nehru: Jawaharlal Nehru, a prominent leader of the Indian National Congress and a close associate of Mahatma Gandhi, was appointed as the Prime Minister of the Interim Cabinet. He played a crucial role in shaping the policies and direction of the interim government.
4. Nehru's Leadership: As the head of the Interim Cabinet, Nehru led the government in its efforts to address various challenges, including the issue of communal tensions between Hindus and Muslims, the process of drafting a new constitution, and the preparation for the partition of India.
5. Achievements: Under Nehru's leadership, the Interim Cabinet initiated several important measures, such as the establishment of the Constituent Assembly to draft the Indian Constitution, the formulation of the Objectives Resolution, and the implementation of social and economic reforms.
6. Transfer of Power: The Interim Cabinet played a crucial role in facilitating the transfer of power from British rule to Indian self-governance. It worked towards ensuring a smooth transition and laid the foundation for the establishment of an independent India.
7. After Independence: Following India's independence on 15 August 1947, the Interim Cabinet was dissolved and Nehru became the first Prime Minister of independent India.

In conclusion, Jawaharlal Nehru headed the Interim Cabinet formed in 1946. His leadership and the efforts of the Interim Cabinet were instrumental in paving the way for India's independence and the subsequent formation of a democratic and sovereign nation.