B.A

To get in administrative services, you need to write civil services exam conducted by UPSC. The minimum qualification required to write this exam is that you must be of 21 years of age and you must have a Bachelor's degree.
You must complete your graduation, and then you can apply for civil services exam. You must start your preparation by reading newspapers. Then, you can read class 8th to 10th NCERT books. Slowly, you can catch up with the fundamental books required for UPSC.
All the best.

BA Bank Management is offered by Bharathisadan University, Palkalaiperur, Tiruchchirappalli - 620024 Tamil Nadu
Eligibility: Class XII
Duration: 3 years

You can prepare for management exams like CAT, XAT, CMAT and SNAP. I would suggest you to go for Arun Sharma's books for DI LR QA and VA. They will be available in major bookstores and online on e-commerce websites.

Yes, you can go for MBA but you will have to work hard, there are many entrance exams to choose from like CAT, MAT, XAT, SNAP and CMAT. Choose the one based on your competency level and the college you aspire for.

If you are from Mumbai University then you need to check out on the internet. There are pdf files available.

Hi,
Yes, you can apply for LLB because student from any stream can pursue law. LLB program duration is 3 years and even after economics honors, LLB program will a good option.
You can check the below mentioned link:
https://www.shiksha.com/top-law-colleges-in-india-rankingpage-56-2-0-0-0
All the best.

You could fill DU's common form, and then seek admission in colleges, where your marks match the cut-off. You can also keep a track of forms of other colleges as well from the month of March. Fill as many forms as you can and appear for as many entrances as you can.