I am writing this entry in terms of the data in the Vakil which indicated that MGA died of cholera. Maulana Abu Kalamazad was an amazing writer and human rights defender, he would eventually become the right-hand man of Ghandi and became the Educational Secretary for the govt. of India in 1947.
See “The Khilafat Movement: Religious Symbolism and Political Mobilization in India” by Gail Minault (1982). See page 39-40. (Studies in Oriental Culture, number 16.) New York: Columbia University Press. 1982.
He writes that MGA died of cholera, and Ahmadiyya leadership knew this, but they hid the data.