Hi, so basically it depends what diploma you have done. You can try out for other colleges, not all colleges carry the same criteria.

The criteria for BA i.e., Bachelor's Of Arts is, one should have completed their 11+12th from recognised Board/University.

Or if this still doesn't work, I'd suggest you to clear your compartment in chemistry and tty taking admission on the basis of that.

It would be much easier for you.

Hope this is helpful.