Hey Paramita!

The course you would choose totally depends ok your interest. I would recommend going for that course in which you are most interested in. Each subject you mentioned has its own set of possibilities and career paths.

If you choose Economics, you will discover an assortment of fields including Finance, banking, management. You could further go in research field, secure jobs like economics consultants for big corporations,etc. But you should have enough drive and determination.

You can also go for BA(Hons.) Geography. Geography also provides various career options. You can further do M.Phil or Ph.D. This subject mainly focuses on application and practicality.

If you wish to pursue law after graduation, history and Political Science are better options as compared to other fields you have mentioned. Both of these subjects will require you to read widely and think critically.

You can go for BA Honours in these subjects, and further go for being a teacher or professor. Although it's important that you choose that subject which you have most interest in since you would be required to study these subjects in detail.