Ramanujan gave his Notebooks to Mr. R. Radhakrishna Ayyar (Advocate)
a classmate in Pachaiyappa’s college (1906-1907), before
he returned to Kumbakonam due to ill-health – for safe keeping.
Ramanujan told him: “If I die, please hand them over to
Singaravelu Mudaliar or to the British Professor – Edward
B. Ross – of the Madras Christian College”. (Ref.
MJ91, page MJ7 in “Ramanujan, the Man and the Mathematician”,
by S.R. Ranganathan, Asia Publishing House, 1967).