B.Com

Hi Meghna, ofcourse you are eligible for MFM after B.Com.
Eligibility for Master in Fashion Management [MFM]
any undergraduate degree from the university or institute that is recognized by the law of India or
Undergraduate Diploma of minimum three years duration from NIFT / NID.
Master in Fashion Management: Admission Process
Entrance Test
Eligible candidates need to appear for the Entrance Exam conducted by the college based on marks obtained in qualifying examination (NIFT-MFM).
Group Discussion & Personal Interview (GD-PI)
Shortlisted candidates will be called for Group Discussion and Personal Interview based on marks obtained in Entrance Exam conducted by the institute.
Candidates are selected based on entrance exam conducted by various institutes and performance in group discussion and personal interview.
Selection parameters and weightages:
Entrance Exam - 70%
GD and PI - 30%
Regards.

This would depend on your interest areas and career aspirations. Since you are a B.Com you would not be able to take admission in MCA as you would be required to have a BCA first. However, based on your interest you can join private institutes who offer such courses affiliated to international institutes/boards to pursue a career in Technical / research / academics area, However if you want to move into general management the MBA is better. Even for a full time MBA you would need minimum 50% marks at Graduation level, so you would not be eligible for it. Since you have work experience of 3 years you can explore executive MBA or Part time MBA or Distance MBA programme.