What are various exams related to police except IPS

For police there is different exam. It is based on which police you are looking for to join whether state or central police services. In state police you have exams from constable, Head constable, SI exam etc from state PSC. And for central police you can write various exams, GD exam, CPO exam, CAPF exams, SI exams of central govt. These are exams apart from civil services through which IPS is selected.