CRR & SLR

Imagine a rule requiring every household to keep a fixed share of its income locked away untouched in a safe, and a second, separate share invested only in the safest possible government savings bonds, before any of the remaining money can be spent freely. Cash Reserve Ratio and Statutory Liquidity Ratio impose almost exactly this two-part discipline on Indian banks before they can lend out deposits.

Cash Reserve Ratio, CRR, requires banks to hold a specified percentage of their total deposits as cash, physically parked with the Reserve Bank of India, earning no interest at all. Statutory Liquidity Ratio, SLR, requires a separate, additional percentage to be held in approved liquid assets, predominantly government securities, which does earn a return, just typically a modest one compared to ordinary lending.

Both ratios exist for genuinely different, complementary reasons. CRR is primarily a monetary policy tool, RBI can raise or lower it to directly tighten or loosen how much money banks have available to lend, a lever that affects the entire economy's credit supply. SLR is primarily a prudential safety requirement, ensuring banks always hold a buffer of easily saleable, safe assets they could liquidate quickly if they ever faced a sudden liquidity crunch.

Together, CRR and SLR mean a meaningful share of every rupee deposited with an Indian bank never actually reaches a borrower at all, it sits locked away specifically to keep the banking system stable and give RBI a functioning lever over the money supply, a deliberate trade-off between lending capacity and systemic safety that every banking system in the world manages in some form.

Whenever RBI's monetary policy announcement includes a change to CRR alongside the more commonly discussed repo rate, that CRR change is a more blunt, direct lever on how much money banks physically have available to lend, working alongside, not instead of, the interest rate signal the repo rate sends.