Yes you can do MBA degree after completing your TY B.Com degree also you can choose other field for doing your higher studies. Below I am providing you the details:

Higher studies options after B.Com

CRISIL Certified Analyst Program (CCAP)
Diploma in Banking & Financial Services(HDBFS)
Executive MBA
Executive Program in Applied Finance - IIM Calcutta
International Post Graduate Diploma in Risk Management
LLB
M.Com
CA
Master in Financial Management (MFM)
Master in Management Studies (M.M.S.)
Master in Retail Management
Master of Business Administration (MBA)
Master of Marketing Management (M.M.M.)
Master’s Degree in Human Resources Development Management (MHRDM)
Master’s Degree in Marketing
Master’s in Business Studies (M.B.S.)
Masters in Financial Management (MFM)
Masters of Business Administration (Information Technology)- MBA-IT
Masters Program in International Business (MPIB)
MCA
Post Graduate Diploma in Management

Career in Private sector after B.Com:

B.Com graduates can get job in the following sectors.

BPO
Financial Services
Marketing
Broking
Banking
Insurance
ITES
FMCG

You will be promoted to higher post according to your experience:

Senior Accounts Executive
Cluster Head
Cluster Manager
Senior Executive of Corporate Sales
ERP Functional Executive