Maithili, Bengali, Assamese, Oriya, Nepali
Despite the fact that it possesses a very large and complex pronominal system, Standard Maithili, Bengali, Assamese, Oriya, and Nepali make no difference in gender in any of its pronouns. Pronouns are differentiated in terms of person, number, social relationship (intimate vs. familiar vs. formal), and proximity to the speaker (proximal vs. distal vs. non-present).
Read more about this topic: Gender-neutral Pronoun