I was reading this book Gujarat files and suddenly I came across this word Narendra Modi’s Man Friday (describing Amit Shah) What does this title mean? And also is the word 'title' I used correct word here in this context?
It comes from the novel Robinson Crusoe by Daniel Defoe:
man Friday n. pl. men Friday or men Fridays An efficient, faithful male aide or employee. [After Friday, a character in Robinson Crusoe, a novel by Daniel Defoe.]
From the Free Dictionary online. Also, from Wikipedia:
Friday is one of the main characters of Daniel Defoe's 1719 novel Robinson Crusoe. Robinson Crusoe names the man, with whom he cannot at first communicate, Friday because they first meet on that day. The character is the source of the expression "Man Friday", used to describe a male personal assistant or servant, especially one who is particularly competent or loyal. Current usage also includes "Girl Friday".