As a CSE 2nd or 3rd year Student, you might not have a lot of opportunities available really, but you can try going for Freelancing or other Mini Projects to gain Experience in such fields. This builds up your experience level as a whole and makes you prepared for different opportunities coming your way in the future.
If you still want to gain more Knowledge about any course we recommend going to CSDT Centre Patna and picking any of the Certification Courses. You would gain Experience and explore your course to a larger extent.