Science

Hello Deepak,
If you're good with mathematics and computer programming, you can go for a better course I'm suggesting below.
I would recommend you to go for security specialist professionals. These jobs are highly payable and in high demand as most companies need them to protect their own data. These jobs work on the same logic that the best thief can protect the data in the best way.
For the same, you can go to some reputed computer training institutes like NIIT, etc. You can go for Java courses followed by networking courses and CCNA/CCNB (CISCO) courses. After this, you can also opt for CEH (Certified Ethical Hacker) certification courses, if you wish to. The cost of these courses varies from institute to institute. You can contact a reputed institute in your city for course and fees details.
Ensure you do these courses alongside a degree course (BCA, B.Tech, B.Sc, etc.) for better outcome.
I hope I have been able to answer your queries to your satisfaction.If so, kindly upvote this answer.If you've any further questions, kindly revert.

In Science, you have engineering and medical. These are the traditional streams students choose. Some new streams are also in demand nowadays like bio- tech, nano technology, agriculture and genetic.
Students are also moving in fashion designing and interior designing. Research oriented students can go for KVPY and get into institutes like IISC or IISERs.
There are courses like mechanical / electrical and computer science in engineering to newer ones like hotel management and fashion designing. You can opt for any of these as per your interest.
I hope it helps. If so, kindly upvote this answer. If you have any further questions, kindly revert.