Hello sini, 

There are a lot of colleges where you can apply even when you couldn't qualify JEE advance. Now look there are three ways to get into any college. First through JEE main or advanced score, Secondly through college entrance exams and lastly through management quota. 

I have provided the link below from you can search the college which accepts JEE score. Now I would also suggest you keep your option open for now and keep reading the review of other students studying in the college of your choice. It will help you to know more about the college education system and placements. 

You can check the following link to know about the college.

some of the good government colleges.

https://engineering.careers360.com/colleges/ranking/top-engineering-colleges-in-India-accepting-jee-main-score

some of the good private colleges which accept JEE main score.

https://engineering.careers360.com/colleges/ranking/top-private-engineering-colleges-in-India-accepting-jee-main-score

Hope you find this information useful.Have a great future ahead.