@Pratik_Sinha, you feel it is risky for you to not get a branch upgrade.
There a similar risk attached to dropping, wherein you might not be getting what you dropped for.
After Considering that==> during college you'll be able to explore other branches, interests et al, dropping offers non of the above. It's gonna be a very mundane life, which only a few people can make the best of.
Decision is upto you. But I recommend you take some time out to think this through . This decision, is not one to be taken so early.