Question

which language is religional and is spoken by vast majority of people ?

Answer 1

hindi is the language

Answer 2

The term "religious language" refers to statements or claims made about God or gods. Here is a typical philosophical problem of religious language. If God is infinite, then words used to describe finite creatures might not adequately describe God.
The Most Widely Spoken Languages In India

RankLanguageSpeakers1Hindi422,048,642

hope it help ....