After completing your BSc in chemistry you can
apply for UPSC as well, although chemistry as a subject might prove to be a bit tougher.
You can search some research centers and apply for a master degree there. This will secure you a future in research, in form of internships, as well while giving you a credible degree. You can join some research in foreign as well but you might need to keep a keen eye for such offers while studying there.
You can join some medicine, food, textile etc company and complete a training from there. This will add to your resume and further your knowledge while simultaneously opening new opportunities for you.
Aside from this you can always pursue an MBA too, for there is no such bachelor year field requirement there.

Thanks,
Azim