Hello Kajal!

Mostly coding courses,mass media, management, creative writing, accounting and finance courses are considered very useful.

The courses which can be done along with your B.Sc should atleast be useful in your career. Please mention your BSc course which you are pursuing so that we can suggest you appreciate courses. 

For more queries, feel free to ask. 

Best of luck!

It completely depends on your interest. I think and from my side now days B.SC in IT is the best at all, because you get the knowledge of both the field B.SC as well as Engineering.And nowdays there are many opportunities for the student of B.SC (IT) to get the Job in IT sector.