My book LOKGANIT (Folkmathematics).

 

N.R. Sen

 

Professor Nikhil Ranjan Sen, legendary mathematician. He was scientist of equal status with S.N. Bose & Meghnad Saha. 

RAJINDER SINGH & RAKSUPASH C. ROY has written a book on Professor Nikhil Ranjan Sen, legendary mathematician. He was scientist of equal status with S.N. Bose & Meghnad Saha.

I have written forward of noted book named N. R. SEN - LIFE AND SCIENCE