All the state governments recruit constables for state police year after year. Apart from these, central agencies like railways, and paramilitary forces like BSF, CRPF also recruit constables. Generally the educational qualification is matriculation or equivalent. The recruitment procedure in all such cases begins with a written test (generally computer based). The subjects covered are essentially General Intelligence, Quantitative Aptitude and General Awareness. Find here mock tests, sectional tests and topic-wise tests to take you through the Written Test phase.