CBSE 12th

Hi , After 12th , it totally depends on the person's interests in a specific field . You have mentioned computer science as a subject . So you have to sit and think for some time , that what do you loved most in the your school days . Is it maths ? is it Chemistry ? is it Physics ? is it computer science ?
You have to find yourself in that subject , if you really wanna achieve something good. You should not feel bored after studying that subject continuously for a longer period of time. When you play , you do not see time . Similarly , it should happen with that field of study or subject . Students can study any subject , what they are told , because it is a compulsion , but it does not give performance .Students are wasting their degree also in compulsion because they do not wanted to do that . They are doing just for the sake of it for their parents , friends and relatives have told them . 12th standard is OK . Till 12th you can read anything and study and can get marks , because that is not your career deciding factor . 12th is compulsory. Marks are nothing , just it is a filtering criteria .
For selecting a subject or a stream for a career , it does not mean that you select that subject in which you got highest marks . Sometimes you do not get higher marks in your favourite subject . So please take time and decide what you want to study and become (Do-not put marks in between)
But from now , you have to really decide what you want in life . You have to start thinking now .
You have to find a passion in that thing or subject .
you have to find what you really want to become . you want to become , engineer , normal graduate (B.Sc etc ) . IAS officer, job in government companies , some other kind of job .
So if this is finalised , then you are done man . If you have a clear vision towards your goal and passion , then nobody can stop you .
If you want a top tier -1 engineering college , then you can get it via your hard work , goal and passion towards becoming a great engineer .
Again , Let me know what kind of things you like and your interests . Then I can answer well according to you and can suggests you some good solutions in your career .
You can contact me at (shubhamtandon77@icloud.com) .
Happy to help .

Devoting one full year for entrance exam preparation has its own merits and demerits. Dropping a year means that you will get sufficient amount of time to prepare for entrance exams. It will allow you take mock up tests and help to score good ranking in entrance examination. However, one year is a long time so the possibility of you may change your goals and objectives is very high. You may become lethargic because of availability of time and lesser pressure. You may waste time. If you are confident of keeping the momentum, dedication, determination, readiness to work on a plan, will to achieve your objective and support of family; you may consider dropping a year. If get subject and institute of your choice it is a good decision and will have no impact on your future.