The Bhoodan-Gramdan Movement was initiated by Vinoba Bhave in 195(A) It was a voluntary land reform movement that aimed to persuade wealthy landowners to voluntarily give a portion of their land to landless people. The movement later expanded to include the donation of entire villages (Gramdan).
Let's look at why the other options are incorrect:
Mahatma Gandhi was a key figure in India's independence movement and advocated for various social reforms, but the Bhoodan-Gramdan Movement was specifically started by Vinoba Bhave after Gandhi's assassination.
Shri Ram Chandra Reddy was the first landowner to donate land under the Bhoodan Movement, inspired by Vinoba Bhave's appeal. He was a participant in the movement, not its initiator.
Sardar Patel played a crucial role in the integration of princely states into independent India. While he was involved in post-independence nation-building, he was not the initiator of the Bhoodan-Gramdan Movement.
Therefore, the Bhoodan-Gramdan Movement was initiated by Vinoba Bhave.