Who announced the formation of a separate Andhra state in December 1952?

First Prime Minister of an independent India

The correct answer is option (4) - First Prime Minister of an independent India

The Vishalandhra movement gathered momentum as a result of the Central government’s vacillation. Potti Sriramulu, a Congress leader and a veteran Gandhian, went on an indefinite fast that led to his death after 56 days. This caused great unrest and resulted in violent outbursts in Andhra region. People in large numbers took to the streets. Many were injured or lost their lives in police firing. In Madras, several legislators resigned their seats in protest. Finally, the Prime Minister announced the formation of a separate Andhra state in December 1952.