CBSE 12th

Hello Puneeth, Yes, a student is eligible to seek admission in an engineering College after successfully completing 12th, provided of course you fulfill other conditions viz marks in 12th, passing concerned CET etc.

Yes, you can get. I am not sure about the branch but your rank is good.

Here the colleges are:
Lady Shri Ram College for Women, Delhi
St. Stephen's college, Delhi
Miranda House, Delhi
Hansraj College, Delhi
Jesus and Mary College, Delhi.
Hindu College, Delhi
Kamala NehruCollege, Delhi
Gargi College, Delhi.

Yes, your percentage are good enough to get admission here. you can apply for admission you will get admission.
Good luck.

MBA is a post graduate programme. So, you first need to complete your graduation and then look for admission in MBA in Aviation. Since you are interested in Aviation you could also explore B.Sc. in Aviation & then go beyond.

All these domains are great and have excellent career prospects in future. So, choose according to your interest and passion. Choose that branch which you like and understand the most. Go into that branch which you know the basics and have passion and determination for. And in your heart you know that you will achieve greatness in this field. Institutions that offer good Quality engineering courses are:-
BITS Pilani
Lovely professional university
PSG Technology Coimbatore
National Institute of Engineering, Mysore
BIT Ranchi.

The fee generally varies for different students depending on their credentials. Please consult the hall of admissions once to get a better idea.

There is a low chance of getting a seat. However, once in pass you can consult the management for a management seat.