Hello

There are many course after b.sc that student opt for based on their interest.

Here are some of the courses :

MSc physics

Msc chemistry

Msc applied mathematics

Msc electronics

Msc biotechnology

Also you can go for many jobs that are available after bsc in both government and private because job is the main motive of many student.

You can go for research,  teaching , banking sector etc ..

Feel free to ask

Good Luck..