Dear Sharan, you applied it correct. JEE Main Paper 1 is for Engineering aspirants and Paper 2 is for Candidates who wish to join Architecture and planning courses. So if you have applied for Paper 1 and 2, the pop up that showed up is correct because the papers include B.Tech, B.Arch and B.Planning. To check the exam pattern, please visit our page at: https://engineering.careers360.com/articles/jee-main-exam-pattern