It is not that Bhagavad-gita is supposed to be Hindu literature, Vedic literature, it is read simply by the Hindus. Now the number of Hindus has minimized. Practically, in some portion of that India there are few Hindus only, actually speaking. So what is the number of Hindus? That is the, what is called, minority in the whole world. If you take calculation of other religion… I have seen the other day in the World Almanac the Hindus, the Hindus are the lowest. So how many Hindus are reading? In India not that 90% people are illiterate. So what they will read? And who is reading Bhagavad-gita? It is all over the world. Still, you’ll find in Germany Bhagavad-gita is being read. In England you’ll find. Even in Muhammadan countries you’ll find, and what to speak of your country. There are so many editions of Bhagavad-gita. … see the importance of real literature.

From Srila Prabhupada’s lecture on Bhagavad-gita 2.26 — Los Angeles, December 6, 1968