Hello Suhail,

It is good to see that you are considering other options as well apart from Engineering and Medical.
Usually students have thinking that no other field have good scope other than engineering and medical but it is totally false. There are various other courses and options available which are doing good even from engineering. Some of the best courses available to do after completing Class 12th are -

1. BCA ( Bachelor of Computer Application )
2. B. Arch ( Bachelor of Architecture )
3. B.Des ( Bachelor of Designing )
4. B.Sc ( Bachelor of Science )
5. Commercial Pilot Training
6. BHM ( Bachelor of Hotel Management )
7. BMS ( Bachelor of Management Studies )
8. BBA (Bachelor of Business Administration)
9. Integrated BBA + MBA
10. B.COM ( Bachelor of Communication )
11. BJMC ( Bachelor in Journalism and Mass Communication )
12. BA (Bachelor of Arts )

Please visit the below mentioned link to get more idea about the courses available -
>>List of Courses Available in India<<

All the best for your future !!

Hey, there are lot of courses after 12th apart from engineering and medical.
First before introducing you about the courses, I appreciate your choice of not following rat race.

Now,, here are the courses -

Agriculture

Pharmacy

Journalism

Humanity

Design

Architecture

Film technology

Faishon technology

Management studies

BCA

CLAT for law

Diploma in Radiology

Mass communication

BBA

NDA for defense service

Also BSc or BA