Hello,
After doing bcom either you can do mcom or mba.
MBA is no doubt the most aspired academic course in India. Lakhs and lakhs of students every year take numerous competitive exams for admission in top most colleges of the country and to get post graduate degree or diploma in Business Management.

However, it is a matter of concern for many that which specialization they should opt for. There are students who think it is a decision they should think about after the exam but if thought wisely, one should be very clear of their future goal even at the time of writing their paper. It is so, because many institutes that offer unique specialization close their admission counter just before the exam and if you miss to apply for those institutes, you may miss out the opportunity of your lifetime.

Apart from traditional MBA specializations like Marketing, Finance, Human Resource, etc. there are institutes that offer specialization in some focused fields like Hospital Management, Hospitality Management, Tourism Management, Petroleum Management, Textile management, etc. Amongst them there are few topics that are not only interesting but are highly in demand as well.
I wish you all the best.
Cheers !!

You have completed your Bcom in computers and you can do MBA ahead as there is no restriction as per the eligibility criteria for MBA. If you have intense interest in computers then you could choose the other course like MCA or Mcom with computers or so.

Incase you have much interest in MBA than the field of computers then following are the specializations you can choose in to go:

1.Finance

2.Marketing

3.Human Resource

4.Information Technology

5. Software

There are many more as well.

You can check in the pros and cons of each individually and then decide as per your interest.

Also to get into any management specialization you will have to clear various managemennt exams like CAT, MAT, XAT, SNAP, NMAT etc to broaden your scope for colleges to get admission. 

Good Luck.