B.Com Scope

No, it is not mandatory to write CMAT exam for MBA entrance. You can appear for other exams too like CAT, XAT, MAT, ATMA or SNAP to get into premiere B-schools.

Yes, it is a great idea. Instead of doing regular M.Com or MBA in general specialization, interior designing is a good option as there are lots of institution offering this course. You can choose the best college.
Best of luck.

Hi,
No, there is no need of post-graduation to qualify bank exam, but yes, if you want to increase your qualifications then opt MBA.
All the best!

Yes, you can do MBA or M.Com.

Hi,
It is up to your interest, if you think of doing hotel management course. Then try IHM institutes all over India, if planning for MBA then try for IIMs, SIMSREE, JBIMS, Christ, PSG, BHU, NIT-T, IIT-D, NIETE, NMIMS, XLRI, PUMBA, Amity, etc.
If you want to do MBA in hotel management then follow the link given below:
https://hospitality.shiksha.com/mba-hotel-management-colleges-in-india-categorypage-6-84-281-0-0-1-1-2-none-1-0

You can pursue MBA from abroad.
For more details, you can visit the below mentioned link:
http://studyabroad.way2college.com/colleges/mba

B.Ed is a good course to start your career as a TGT. You may also plan to do M.Com or any other PG degree for your career growth as a teacher.

If you would like to prepare for the bank exams, you may pursue a distance MBA program. Distance MBA in online mode is offered by NIBM (National Institute of Business Management). NIBM offers one year MBA, two year MBA and one year Executive MBA in online mode and it also offers MBA video tutorials for all its registered students. Go to the official NIBM website for matters related to specializations and admissions.