Class 12-science

Hi Manoj,
As you are waiting for your class 12th board results, it totally depends on your interest that in which field you want to see yourself in future. If you want to be an engineer, then you can go for engineering courses. If you want to prepare for government jobs then you can go for B.Sc courses. So, first decide what you want to do.
Best of luck.

You must sit for JEE-Mains as it will give you an opportunity to get a good engineering college. Else, you can look for colleges which takes admission based on 12th percentage. Check these institutes –
Saveetha Engineering College, Chennai
BMS College of Engineering, Bangalore
Bharati Vidyapeeth Deemed University College of Engineering
Singhad Technical Education Society
DR. D. Y. Patil College of Engineering

You should decide which course you want to pursue and then look out for universities and colleges which will be able to provide you admission. 71% is a decent percentage, so don't feel demotivated.

It will be difficult to get a seat in Nirma University at this score. Generally, the cutoff is under AIR-30000 for Nirma University. You can check the below link for other colleges based on your JEE-Mains score: https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

No, it is not compulsory that a student should have passed class 12th with more than 60% in physics, chemistry and maths, not with computer science because computer science is an additional subject but you just have to get more than 60% in PCM to get admission in any college for CSE.

Hi,
Firstly, you need to register for NATA exams/JEE paper 2 exams and qualify in it to seek admission to a 5 year B.Arch Degree course, once the course is completed you become an Architect. Check the link below to get a list of approved Architectural Colleges. https://www.coa.gov.in/index1.php?lang=1&level=0&linkid=25&lid=26.

Yes, it can be a good option. Here are some of the top Diploma courses one can take up after class 10th, Diploma in Commercial Art. Diploma in Art Teaching. Diploma in Beauty Culture & Hair Dressing. Industrial Training Institutes. Diploma in Garment Technology. Diploma in Stenography. Diploma in Laboratory Technician and a lot more opportunities.

There are a lot of streams available. Just look for your interest and go for it.
Engineering, medical, army, navy, IAF, fashion technology, interior designing, hotel management, civil services, aviation, photography, mass communication, and many more.

B.Tech has many fields. If you're interested in computers and coding then go for B.Tech (CSE or IT), and you can go for BCA too. As you're Science stream student then opting for B.Tech is a better option than any other course if you're seeking a career in technology.