HELLO SUNIL
Considering your situation you should apply for the maximum engineering entrance exam as possible since you may qualify some or the other.
Now i suggest you to fill the entrance exams which has no negative marking criteria there are various institutes such as SRM,VIT and if you want to continue your studies in karnataka then you can apply for COMEDK which is a easy exam compared to all the exams and there is no negative marking too.
I'll provide you a link of all the engineering entrance exam of india you can apply for those which you are comfortable for!!
https://engineering.careers360.com/exams
Other than engineering for Non Med you can go for BBA ,BCA,b.sc,
Pilot (Indian Flying schools provide CPL program with a duration as long as 2–3 years.It takes 18–24 months in getting the Commercial Pilot license after acquiring a flying experience of at least 200 hours)
Railway Apprentice Exam (Training of 4 years after selection. Further,candidates take up leadership positions in the Indian Railways as Class 1 officers)
Well you can refer this link too https://school.careers360.com/articles/courses-after-12th

HOPE IT HELPS!!

Hi Sunil

For Btech You can give following entrance exam :

• JEE Mains Exam
• IPU CET
• Admission to DU and other institutes are mostly based on JEE Main exam

Other courses you can do other than B.Tech. are :

• Architecture
• Computer application
• Bsc in nautical technology
• Btech in naval architecture and ship building
• HND Nautical science or marine engineering
• Bsc
• Commercial pilots
• Sc in aviation science
• defence
• NDA Exam

Hope it helps :)