In behalf of an acquaintance, pursuing PhD, may I request for the soft copy or source for hard copy of the book(s) Rangaramanuja Bhashya for Chandogya, Brihadaranyaka and Mundaka Upanishads 

--
Nagaraj Paturi
 
Hyderabad, Telangana, INDIA.
 
Former Senior Professor of Cultural Studies
 
FLAME School of Communication and FLAME School of  Liberal Education,
 
(Pune, Maharashtra, INDIA )