B.A

Hello,
It depends on your age as many colleges have different age limits plus you will need permission from army as well.
I loved your decision to come back with your studies.
All the best.

There is a difference between both no much but yes there is:
B.Sc in hotel management is traditional graduation, not a full-fledged hotel management course. It is the part of B.Sc. But, BHM is a full-fledged course and it is specially designed for hotel management. Of course, BHM has better scope as after doing it you can work in service industry, tourism etc.

University of Calcutta
Bethune College
Gokhale Memorial Girls' College
Loreto College.

Yes, you can surely apply for any University and by clearing the CET for JMC in IPU or at DU, you can take admission there.

Technically, you can do a Masters if you have Bachelors. But, when you apply for a Masters in fashion design the requirements are to submit a portfolio. These portfolios are really elaborate. For example 12 garments designed and sewn by you. Fit on a model with pictures taken, etc. Also, there might be a design challenge. So, if you have your portfolio you can surely apply for M.Des.

Yes, you can do B.Ed after completing your BA Degree
But, you must have to pass your graduation degree with 50% marks.
Some universities which offers best B.Ed Programme are-
-Delhi University,
-St,Xavier's of Education, Mumbai
-Aligarh Muslim University, UP
-Mahatama Gandhi Kashi Vidyapeeth, UP
-M.S.Ramaiah College ,karnataka
-Acharya Jagadish Chandra Bose College.

DU has always taken the best 5 subjects for calculating cutoffs. You can get admission into a south campus college, in 2nd / 3rd round if seats are left because most of the seats are already full in the 1st round. Good luck.

Candidates seeking admissions to the course must have passed their class 12th examination in Arts or Science stream by securing good percentage.

Well, my advice would be even if you could, you shouldn't. The course is very vast with practicals which will overlap and exam datasheets which would overlap. Next thing it is not allowed anywhere in any university. You can read the eligibility criteria to get answer.