JEE Main

Yes, you can get admission here but I am not sure if you will get CSE or not.

Hi, your score is not so good. You have not even scored 40% in NATA you but you can get private colleges in Karnataka.

Talking about best NIT Surathkal, NIT Rourkela, NIT Trichirapalli are the best NITs out there. Talking about the courses, it depends on you that which one you like the most or which one you can handle with ease. Try to choose core branch as has most job opportunities.

JEE Main Rank Predictor:
Predict you're JEE Main 2018 all India rank based on your actual/expected score using our JEE Main rank predictor at the link provided below:
https://www.shiksha.com/b-tech/resources/jee-main-rank-predictor
Please look for a rank predictor from a separate source for NATA, as Shiksha is not equipped with a rank predictor for NATA. Regards.

Hi, You can use the JEE Mains 2018 College Predictor option available on Shiksha. Com. College Predictor helps students to get an idea about the chances of admission in the college of their choice based on JEE Mains 2018 result. Please refer the link below for your reference:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor.

Yes, you can get admission in the 2nd round of counselling. There will be a rapid transfer after the 1st round of counselling. So, seats will be left vacant.

No, it's not a wise idea. Go for coaching along with your studies. Both have the same syllabus. A proper mock test will help you get a good score along with your studies.

The scope of aerospace engineering is very good in India / World, but with your current rank, it is not possible to pursue aerospace engineering in a good college besides there are very few colleges in Karnataka which provide the course.

Yes, you can get admission. You can join private self-finance campuses. With 25 marks in JEE, you will get private campuses only.