India vs Indian subcontinent

India

name
  • An area of land in Southern Asia, traditionally delimited by the Himalayas and the Indus river; the Indian subcontinent. 

  • A female given name 

  • A country in South Asia. Official name: Republic of India. 

  • A territory of the British Empire, chiefly comprising the modern day countries of India, Pakistan, Bangladesh, Bhutan, Nepal and Burma. 

Indian subcontinent

name
  • The landmass south of the Himalayas projecting into the Indian Ocean, sometimes also including nearby islands; the land on the Indian plate. 

How often have the words India and Indian subcontinent occurred in a corpus of books? (source: Google Ngram Viewer )