Class 11

Only students who have cleared 10+2 successfully are eligible for this course. Along with the above mentioned basic eligibility, students have to clear the entrance exams as well to be eligible for the course. Since you have not cleared class 12th exams you will not be permitted to pursue this course.
Regards.

Hi,
Yes, you can but depends on the university. You cannot do two full-time courses together. So, one has to be in full-time and other in distance mode or both via distance mode. It is also not easy to concentrate on both. It is better you concentrate and excel in just one.

Please check for your eligibility to pursue a course in sound engineering from the criteria mentioned below:
Students may pursue the 2 years long Diploma in Sound Engineering course. To pursue this course, a student must have completed 10+2 Schooling with Physics, Chemistry and Mathematics subjects. In case of Admission process, some Institutes may even conduct their own entrance and Aptitude examinations. Regards.

It is totally up to you. If you work hard for the rest of the year, you will surely succeed. So, you don't need to worry about that. Just make sure that you work hard.

Your class 11th marks will only be a problem, if you are planning to apply to overseas colleges. Mostly, colleges in India only consider class 12th marks.

Hello Shivam, it depends on which exam you want to give after class 12th. In any exam, you can see the exact same logical question, which you studied in class 11th and class 12th. So, don't take stress. If you study well in class 11th and class 12th so, you do not have to take tension.