which fighter of south african satyagrah wrote "gandhi ki sadhana"?

Answer 1

Many South Africans wrote about Gandhi and his Satyagraha.

ANDREWS, C. F.
CATT, Mrs. Carie Chapman
CURTIS, Lionel
DESAI, Pragji
GANDHI, Manilal
KRAUSE, F. E. T.
LAWRENCE, Vincent
PHILLIPS, Agnes M.
POLAK, H. S. L..
SMUTS, J.C.
WEST, Albert
YOUNG HUSBAND, Sir Francis

Most of these authors are or were South Africans.

With regards to your question on freedom fighters that wrote about the "South African Satyagraha", there is only one person, Dr. Yusuf Mohamed Dadoo.

Answer 2

Nelson Mandela?

Answer 3

English please