Kolkata Police SI Course @499 Kolkata Police SI (Prelims + Mains) 1. 200 Video Classes 2. English & Bengali Descriptive 3. 7500 Science PDF 4. 3500 Geography PDF 5. 2700 History PDF 6. 1000 Polity PDF 7. 1000 Economy PDF 8. 5 Full Practice Set 9. Current Affairs 2020-2021 PDF