For most of India's post-independence history, the RBI told banks what to charge. Lending rates were prescribed by sector, by size, by borrower category. Deposit rates were fixed by tenor. The entire interest rate structure was an administered price — set by committee, adjusted by circular, disconnected from market forces.
The deregulation took thirty years and four regimes. Each one failed in its own way, and each failure drove the next reform.
See also: Deposit & Savings Regulation | The Interest Rate Chain
Companion read: How Interest Rate Policy Actually Works — the narrative of how repo rate changes travel through the banking system to reach your home loan EMI, why three regimes failed before the external benchmark finally worked, and what the penal charges reform reveals about the RBI's evolving consumer protection philosophy.
Regime 1: BPLR (Pre-2010) — The Opaque Floor That Wasn't
The Benchmark Prime Lending Rate was supposed to be the reference rate for all bank lending. In practice, banks lent below it routinely — sometimes well below — for preferred corporate clients. The rate that was meant to be a floor became a ceiling for retail borrowers and a fiction for everyone else.
Export credit got its own concessional regime. The April 2004 export credit circular (Rupee Export Credit Interest Rates) (since withdrawn) prescribed rates at "not exceeding BPLR minus 2.5 percentage points" for pre-shipment credit up to 180 days — a directed lending subsidy embedded in the interest rate framework.
Meanwhile, the July 1999 FRA/IRS circular (Forward Rate Agreements/ Interest Rate Swaps) (since withdrawn) laid the derivatives groundwork:
"The Reserve Bank of India has decided to allow scheduled commercial banks, primary dealers and all-India financial institutions to undertake Forward Rate Agreements/Interest Rate Swaps as a product for their own balance sheet management and for market making purposes." Forward Rate Agreements/ Interest Rate Swaps
Cautiously designed — plain vanilla only, no caps/floors/collars, corporates restricted to hedging. But this was the infrastructure that later enabled banks to manage their interest rate risk when lending rates became market-determined.
Regime 2: Base Rate (July 2010–March 2016)
The Base Rate guidelines (since withdrawn) ended the sub-PLR lending fiction. The key change: no lending below the Base Rate, period. But transmission remained sticky because each bank calculated its own Base Rate using its own cost structure — and banks had no incentive to recalculate when the RBI cut the repo rate.
Regime 3: MCLR (April 2016–September 2019)
The Master Direction on Interest Rate on Advances (Master Direction - Reserve Bank of India (Interest) mandated the Marginal Cost of Funds based Lending Rate — theoretically linked to the marginal (not average) cost of deposits, so rate cuts would transmit faster. In practice, banks gamed the marginal cost calculation. Transmission improved, but not enough.
Regime 4: External Benchmark (October 2019–Present)
The same Master Direction mandated that all floating rate retail and MSME loans be benchmarked to an external rate — the repo rate, T-bill yield, or any FBIL-published benchmark. Banks could add a spread, but the spread "shall not be increased except on account of deterioration in the credit risk profile of the customer."
This is the regime that finally works. When the RBI cuts the repo rate by 25 bps, every home loan and MSME loan linked to the repo rate adjusts within the next reset period. The transmission that eluded three previous regimes arrived through the simplest mechanism: tying the lending rate to a rate the RBI directly controls.
The Penal Charges Reform (January 2024)
The August 2023 circular RBI/2023-24/53 changed the fundamental character of penalties:
"Penalty shall be treated as 'penal charges' and shall not be levied in the form of 'penal interest' that is added to the rate of interest. There shall be no capitalisation of penal charges." Fair Lending Practice - Penal Charges in Loan Accounts
"The intent of levying penal charges is essentially to inculcate credit discipline and such charges are not meant to be used as a revenue enhancement tool." Fair Lending Practice - Penal Charges in Loan Accounts
And an equity provision: "Penal charges for individual borrowers shall not be higher than those applicable to non-individual borrowers." Banks had been charging retail customers more than corporates for the same kind of default. That ended January 1, 2024.
The August 2025 MPC resolution — the 56th meeting under the new framework — continued the transmission mechanism by adjusting the repo rate, demonstrating how the external benchmark regime now directly links monetary policy decisions to retail lending rates: Monetary Policy Statement, 2025-26 — Resolution of the MPC, August 4 to 6, 2025 (PR_60957).
Last updated: April 2026