Explanation: The renaming of the North-East Frontier Agency (NEFA) to Arunachal Pradesh is a significant event in the political and administrative history of India. NEFA was a region under the administration of the Government of India, and it was not a state. The process of renaming NEFA to Arunachal Pradesh involved several political and administrative steps.
Bibhabasu Das Shastri, who served as the first Chief Minister of Arunachal Pradesh, played a crucial role in the renaming process. He was instrumental in advocating for the region's development and administrative status. His efforts were pivotal in the transition from NEFA to a full-fledged state.
Raja, another prominent political figure, also contributed significantly to the renaming process. His involvement was crucial in garnering support and ensuring that the renaming was carried out smoothly. The collaboration between these two individuals was essential in achieving the renaming of NEFA to Arunachal Pradesh.
The renaming of NEFA to Arunachal Pradesh was not just a change in name but also a significant administrative and political change. It marked the transition of the region from a centrally administered area to a state with its own government and administration. This change was part of a broader process of state formation and reorganization in India, which aimed to provide more autonomy and administrative control to various regions.
Understanding the contributions of both Bibhabasu Das Shastri and Raja is crucial in comprehending the historical context and the political dynamics involved in the renaming process. It highlights the collaborative efforts required in such significant administrative changes and the roles of key political figures in shaping the administrative landscape of the region.
In conclusion, the renaming of NEFA to Arunachal Pradesh was a collaborative effort involving both Bibhabasu Das Shastri and Raja. Their contributions were essential in achieving this significant administrative and political change. Therefore, the correct answer is (C) Both a and b.