Class 12-science

You need Biology as compulsory in addition to Physics and Chemistry for admission.

To pursue, it purely depends on you, I can only suggest you to what course you can pursue after 12. The course you can pursue after commerce are:
BBA, B.Com B.A. BHM CA CS CMA, B.A. etc. And after Home-Science:
BHM is the best option or BBA according to me.

IIT Inspire Academy of Science
IIT Home
Bedi's Classes
Sharda Classes
These are as per my knowledge.

B.Tech is the best option. It has a good scope too.

Since you have completed class 12th in PCM, you now can do graduation in either engineering or Bachelor of Science in any of the 3 subject. So, now it depends on you whether you want to learn more in single subject or want to utilize your skills in engineering day-to-day problems. See, here is the key - try to know about yourself what type of mind you have. Means you want to learn again as in school about the subject or want to learn different subjects in engineering and then want to utilize your learning.

Best courses after class 12th for Science Students with PCM, PCB and PCMB are mentioned at the link provided below:
https://www.shiksha.com/courses-after-12th/science.

Minimum eligibility for visual merchandising course is a pass in plus two examinations from a recognized Institution in any discipline. In most cases, visual merchandising is taught as one of the major papers in fashion design or technology courses. Most colleges have a different provision for admission. You need to contact the institute officials personally for specific admission details as it differs from one college to another. Hope this information helps. Please feel free to revert.

Hi buddy,
Symbiosis centre for Management Studies offers a three-year full-time BBA programme. Candidates looking for admission to this course must have passed 10+2 or equivalent from a recognised board with minimum 50% marks in aggregate.
I hope this helps.

Hello.
Yes, you can do CA after 12th science but it would be a little difficult and tough in the starting. It will get better with time.
Good luck.

Hello,
CA is totally commerce related so you don't have to worry for marks in your science subjects.
Good luck.