The government schemes that run on the banking system: PMJDY and the Basic Savings Bank Deposit Account, the JAM trinity behind Direct Benefit Transfer, the PMJJBY, PMSBY and APY social-security schemes, and the business-correspondent model for last-mile delivery.
Reading the 9 sections above, the worked examples and the practice set is free — the whole knowledge base is on the free plan, along with flashcards, private notes and Ask Onely.