Class 11

For Diploma, you need to be class 12th pass so just clear it first then go for any course.

You should appear in the entrance examination after 12th exam, there is a high chance that you can get placed in Bangalore.

My dear, concentrate on your 10th first. You make your own decision after that, what you like the most. Because you can't succeed in that field where you are forcefully admitted yourself. So, whatever you think is best for you target that field because every field have a lot opportunities.

To get admission in Bombay Flying Club for Students Pilot Licence, the candidate must have passed class 10th from a recognized board and the minimum age should be 16 years. Interested candidates can apply directly to the college.
Please click on the link below for reference:
https://www.shiksha.com/careers/pilot-91

Hi,
Please mention the stream that you have taken in class 11th. Also, NCERT books are more than enough to score well.

Please click the link below:
https://www.shiksha.com/humanities-social-sciences/articles/choose-your-stream-wisely-after-10th-class-blogId-6111.

To do MBA from IIMB, you need a Bachelor's degree.

It would be great to continue in CBSE board, if you want your daughter to prepare for competitive exams. And, if you want your daughter to get admission into Institutes based on class 12th Grade marks, it's good to join your daughter in PUC. As far as my experience CBSE would be better than state board which would be helpful in most of the aspects.

St. Xavier's College, Mumbai takes undergraduate admissions based on class 12th marks. If you wish to study here then your score should be minimum of 90%.