JEE Main Entrance Exam held for 2 papers, Paper-I is for B.Tech admissions and Paper-II for B.Arch admissions. The entrance exam is conducted for the admission to various B.Tech/B.E. programmes offered by 31 NITs, 23 IIITs and 23 CFTIs. JEE Main is the qualifying test for JEE Advanced through which candidates can get admission to 23 IITs. In order to take admission for B.Arch in IITs, After qualifying JEE Advance Entrance Exam you need to appear Architecture Aptitude Test (AAT). You can check the further information & eligibility to apply for JEE Main Entrance Exam with the given below link.

https://engineering.careers360.com/exams/jee-main

Good Luck!