1. What Does It Mean Legally?

Under RBI regulatory architecture, interest is not purely contractual. It is governed by:

a) General Framework:

• Master Direction - RBI (Interest Rate on Advances) Directions, 2016 - Freedom to banks to fix floating rates is subject to EBLR / MCLR / Base Rate / BPLR transmission.
• RBI Circular RBI/2023-24/55 DOR.MCS.REC.32/01.01.003/2023-24 dated 18.08.2023 - Reset of Floating Interest Rate on EMI based Personal Loans

b) Scheme-Specific Guidelines:
Where a loan is under a Government-sponsored scheme - PMEGP, PMMY, Stand-Up India, Education Loan Scheme (CSIS), MSME Restructuring, ECLGS, DRI scheme - the scheme circular itself prescribes the interest cap, subsidy-linked rate, or reset formula. Failure to apply that formula is a breach of RBI direction.

Failure can be of three types:

1. Failure to reduce when benchmark falls: Bank keeps charging old BPLR/MCLR when RBI Repo / EBLR has fallen.
2. Failure to switch system as per guidelines: e.g., not migrating BPLR -> Base Rate -> MCLR -> EBLR loan as mandated for that category, or migrating unilaterally to a higher rate.
3. Failure to give reset options under 2023 Circular: Not intimating borrower at reset, not offering option to switch to fixed rate, increase EMI, extend tenure or prepay, not sharing quarterly statement of principal/interest

RBI makes this a ground for deficiency. Non-observance of RBI directives on interest rates is specifically listed as maintainable before Banking Ombudsman and is considered deficiency under Fair Practices Code / BCSBI standards.

2. Is It Deficiency in Service or Policy Decision?

The Supreme Court has drawn a fine line.

In Hongkong and Shanghai Banking Corp. Ltd. case (Civil Appeal No. 5273 of 2008, decided 20.12.2024) - The Court held that administrative policy decisions of banks about rate of interest cannot come under purview of Consumer Commission as 'service' under Section 2(1)(o) of Consumer Protection Act, 1986, and RBI has exclusive authority over banking policy.

However, this protection applies only to discretionary policy. When interest rate is fixed by a mandatory scheme guideline or sanction letter, its violation IS deficiency and is justiciable.

3. Leading Case Laws Where Banks Were Held Liable

1. Delhi High Court - Unilateral Alteration in Violation of Sanction Letter - Refund of Rs. 2.04 Crore
Plaintiff entitled to recover Rs. 2,04,30,669 with 9% interest. The bank unilaterally transitioned loan from BPLR minus 1.25% to Base Rate system, increasing rate without consent. Court held it was contrary to sanction letter terms and RBI guidelines.

Ratio: Sanction letter is a binding contract. A scheme-linked rate (BPLR - 1.25% or as charged by consortium banks) cannot be altered without borrower consent and RBI-compliant procedure.

2. Allahabad High Court - Manmeet Singh v UOI, [2024:AHC:8624-DB]
Held banks cannot arbitrarily charge high varying interest rates without proper justification and due intimation to and consent of borrower. Bank invoked Master Direction, 2016 to claim freedom, Court rejected and demanded transparency.

3. Delhi High Court & Allahabad High Court on Fixed Deposits - Smt. Sarojni Jain & Anr. Vs Union of India and Natwest Markets PLC Vs Hero Exports (Delhi HC, 23 Sept 2026)
Bank reduced FD interest from 7.75% to 3.5% on a Rs. 5.89 Crore court-attached FD citing RBI Circular Clause 3.3. Division Bench of Justices Avneesh Jhingan & Shail Jain held: Clause 3.3 allows banks to fix ROI but discretion is conditional and cannot be used to retrospectively alter concluded rate. Issuance of FDR with specified rate is binding contractual obligation. Bank cannot unilaterally reduce rate during subsistence of deposit.

4. NCDRC - IDBI Bank vs Pardeep Tayal, Appeal No. 2277 of 2008 (13 July 2010)
Bank had right to alter rate in floating scheme, but only if review clause existed - "Interest rate will be reviewed at end of 3 years from date of final disbursement". If bank fails to review on due date and continues higher rate, it is deficiency.

5. NCDRC - State Bank of India v. N.K. Sharma (04 Jan 2012)
Scrutinized clause 4(b) allowing bank to revise rates with quarterly rests. Held such clauses must be read with RBI fairness guidelines; arbitrary hikes without market linkage not enforceable.

6. Supreme Court - Rounding Up Interest Illegal
In SC order on rounding up interest to next higher 0.25%, banks were directed to pay Rs. 50 lakh each to fund for physically and mentally challenged as atonement for collecting excess interest. Established that charging even 0.25% extra against scheme is unfair.

7. Supreme Court - Central Bank of India v. Ravindra (2002) & Sardar Associates Ltd. v. Punjab & Sind Bank (2025)
Laid down rule of appropriation - amount to be adjusted strictly in accordance with decree/agreement, first towards interest and cost then principal. Failure to adjust as per RBI guidelines on interest application is violation.

4. Legal Remedy For Borrower

If your bank has not reduced rate as per scheme:

Step 1: Representation under RBI 2023 Circular - Seek reset statement, option to switch to fixed rate, re-calculation.

Step 2: Complaint to Banking Ombudsman under Integrated Ombudsman Scheme, 2021 - Ground: non-observance of RBI directives on interest rates.

Step 3: Consumer Complaint under Consumer Protection Act, 2019 - Deficiency in service + unfair trade practice. You can claim refund of excess interest with 9-12% interest (as in Delhi HC 2.04 Cr case), compensation, and litigation cost. District Forum has jurisdiction if scheme guideline is mandatory, not discretionary policy.

Step 4: Writ under Article 226 - If scheme is government-sponsored, High Court can intervene as in Sarojni Jain and Manmeet Singh cases.

Key Evidence to Attach: Sanction letter showing scheme rate, RBI scheme circular, EBLR/MCLR historical chart, EMI schedule showing non-transmission, communication where you requested reset.

Pro Tip: Under RBI's 2023 FAQ (released 10 Jan 2025), at every reset, lender must offer you documented choice. If they extended your tenure beyond retirement without consent during 2022-23 repo hikes, that itself is a violation you can challenge for refund.