Its great you are interested in variety of fields. In this case you should choose whichever is your strength and wher eyour aptitude lies in and where you feel you will simply love to aork and excel. 

After Bsc CS you can go for following opportunities :

• MBA in IT Management 
• MS in Computer Science from USA and Canadian Universities
• Msc in Computer Science 

You can also go for job opportunities in PSU via GATE CSE exam.