Hello aspirant

First of all, don't feel disheartened, stay positive and wait for the results.

Secondly there are many other institutes which provies you with an opportunity to learn korean language and culture such as:

1. Centre for  korean studies in JNU
2. Arirang Korean academy in dwarka
3. Indian institute of chinese and korean language
4. IGNOU(SOFL)

Lastly the KCC institute conducts its exam twice in a year in Delhi so you can apply again.

Good luck

Hope it helps.