Vice Chancellor Vijay Ainchwar said the author, Sanjay Gore, was called to the University office and given a strict warning.
"We had not given any permission to the author to write this book or to publish it," Ainchwar said.
Registrar Vinayak Irpate said a show-cause notice had been issued to Gore as to how he published the book without the Varsity's permission.
The book, `Democracy in India', was for the first year students of BA (Political Science) for the ongoing academic session of the newly-formed varsity.
Page number 84 has a chart of the Presidents of India, in which Mukherjee has been mentioned as "the 14th President of India".