bhadralok vs first class

bhadralok

noun
  • A class of rich high-caste (Brahmin) landlords in Bengal formed during the British Raj. 

first class

adj
  • Of, or relating to the most luxurious and expensive class of accommodation on a train, ship, hotel, etc. 

  • Great, very enjoyable. 

  • Of, or relating to a first class match. 

  • Belonging to the best or top group in a system of classification. 

  • Of, or relating to a class of mail to be delivered before second class. 

  • Of, or relating to a treatment like that for a first-class citizen. 

noun
  • the third year of primary school, following after the junior and senior infant levels. 

  • premier rank. 

  • One of two classes of city government in the U.S. state of Kentucky, in which cities elect a mayor and aldermen. 

How often have the words bhadralok and first class occurred in a corpus of books? (source: Google Ngram Viewer )