i want to become a police officer

Its up to you which course or subject you are interested and you enjoy studying subject.

As there is no restrictions on stream in IPS required to give exam. So you can take any subject combination.

See the importance of subject is seen when choosing subjects for optional.

So if you wish to make your subject knowledge strong from mains view of exam then I would say to chose a subject which you have knowledge about and you really are interested in.

Also I would like to tell you its not necessary that you chose subject for optional according to your graduation subjects but according to the indepth knowledge for which subject you have.

So I would like to advise take the subjects which you feel you can cope up with as there is no good or bad subject for IPS.

If you are a young man or woman desirous of serving in the Indian Police, but do not know how to become a police officer in India, this article will make it easier for you by explaining the steps involved in the procedure. Police is a strong part of the administrative machinery that helps in maintaining law and order in the society. It is the responsibility of the police officers to listen to the complaints filed in civil and criminal cases and take action to nab the culprits. They are also required to maintain cordial relations between different communities and to take appropriate action to prevent an eruption of communal violence.

for more info follow : http://pediaa.com/how-to-become-a-police-officer-in-india/