Science

Hello Satvik,
Generally, if you fail in one or two subjects then colleges allow you to attend class in the 2nd year and then give the exam next year with the paper of 2nd year but if you fail in honours subject then you have to first pass the exam and then attend the next year's class. For more details, please contact to your college's Head of Department.

Yes, you can get admission, though only in a private college.
All the best.

No, you cannot take admission in the mid of the year as all the admissions are blocked at the starting of the session.

Seats are allotted to the students by considering their rank and the choices they have filled (preference wise).

No, it is not necessary but if you want to be a good artist, then it will be useful to you while designing something.

Yes, there will be no issue if after clearing compartmental exam your percentage satisfies the college requirements, then you can apply for it.

For becoming a pilot, no graduation is required. You just have to be class 12th pass with PCM. The minimum marks required in PCM is 50% for pursuing CPL. You may do Graduation on your own wish, although it will not be counted anywhere for CPL Training. It will only be an additional qualification on your CV.

Hello Paritosh,
I am attaching a link for your query please go through it https://www.shiksha.com/science/articles/job-options-after-bsc-degree-know-salary-packages-blogId-13469
Good luck. Thank you.