Hello dear,
I hope you took commerce with computer science instead of business maths in your group.

After 12th there are numerous courses on computer science ranging for 39 months period. Some of them are

Graphic Designing
Web Designing
SEO/SMO/SEM
Hardware/Networking
PHP
Corel Draw
Photoshop
Responsive Web Designing
Android Application Development
C and C++
JAVA
Web Graphics

These are extensive courses that help in securing better job and are an add on in your CV.