You now completed your fybsc first year you want to change the stream in second year is it possible?

Yes, it is often possible to change your stream after completing the first year of your Bachelor of Science (BSc) program, but it depends on the specific policies of your university. You may need to meet certain criteria, such as academic performance and prerequisites for the new stream. It's essential to consult with your academic advisor or the admissions office to understand the process and any requirements involved in making the switch.