With an end-to-end preparation model, Testbook brings another treat for its readers with this Kolkata Police SI - Testbook App. We aim at providing the best learning experience to the aspirants of this Kolkata Police SI exam and help them with their selections. This app has been designed keeping in mind the requirements and the Kolkata Police SI exam pattern. Apart from the subject-specific notes, we also offer various practice and reading material with downloadable PDFs. This is all the way