Hello there!

Greetings!

Yes dear student , you can appear for jee main paper 2 only , there's no compulsion to appear for both the hee main paper 1 and jee main paper 2. Actually,  it solely depends upon the choice of student that which jee main paper he/ she wants to give or not. Paper 1 is for engineering aspirants while Paper 2 for students seeking admissions in architecture and planning courses. So , you can surely give only paper 2 .

Thankyou