Dear aspirant,

If you want to go for aerospace engineering there are some very good colleges which accepts jee mains score.

Some of best colleges for aerospace engineering are-

1-IIT Bombay

2-Iiest shibpur

3-Chandigarh university (known for its aerospace branch)

4-IIST Thiruvananthapuram- Indian institute of space science and technology

5-IIT Madras

For more colleges you can check out the link given below-

https://engineering.careers360.com/colleges/list-of-aerospace-engineering-colleges-in-india

Coming to the second part of the question, through jee mains you would be eligible for nits/iiests and through jee advanced you would opt for IITs.

For jee mains and for aerospace branch in iiest a 97+ percentile would be a safer one and for jee advanced a rank of 1.5k would be enough for top colleges.