Colleges in West Bengal

Please check the eligibility criteria of the respective university, as some universities have age limit, and some not.

Yes, you are eligible for getting admission in IISWBM for MBA in HRM.
Interested candidates can apply online/ offline with required information.
Group Discussion
Shortlisted candidates will be called for group discussion based on the percentile obtained in CAT.
Personal Interview
Shortlisted candidates will be called for personal interview based on their performance in group discussion.
Final Selection
Candidates are selected based on CAT score and performance in group discussion and personal interview.

Yes you may. But at the end it all depends on how well your admission test goes and also how well your interview goes. Marks do carry some weightage but you need ot perform in other criteria.

Admission for B.Sc, BA and B.Com in University of Calcutta is based on merit (12th Marks). Hence, there is no entrance exam for these courses. Please read admission and examination regulations for BA, B.Sc and B.Com by using the following link:
https://www.caluniv.ac.in/CBCS/cbcs.html

You should apply for B.Ed after completing Masters. Otherwise, you will face validity issues.