Hi,

Well if you are going for bachelor in science degree then you need to have completed your high school with science as a subject and as you have commerce, I do not think that you will be able to apply as the eligibility criteria won't be satisfied by you. I hope you will cross check it once again but commerce students cannot go for a bsc but can go for a BA in psychology as in case of BHU.

I hope my answer helps.

All the best.