Rash Behari Bose’s precious documents are archived at Daito Bunka Daigaku. I have most of them in my data file, but am not able to share them to you.
Category Archives: Resources
国立国会図書館 (राष्ट्रिय दायित्त ग्रन्थालय – National Diet Library)
The National Diet Library of Japan is where you should research Rash Behari Bose. Most of the books and documents are in old-style Japanese. Everything that you want to know is housed there.