JEE Main exam is conducted in both Hindi and English languages . Apart from this, this exam is also conducted in 11 other languages like Assamese, Bengali, Gujarati, Kannada, Malayalam, Marathi, Oriya, Punjabi, Tamil, Telugu, and Urdu.

JEE Main exam is conducted by National Testing Agency (NTA). It consists of two papers, Paper-I and Paper-II. Candidates can attempt either or both of these papers. Both papers are multiple choice type questions.

https://engineering.careers360.com/articles/jee-main-exam-pattern

All the best..