Tamilnad Mercantile Bank reported a 35% year-on-year increase in net profit to ₹4,115 crore for the quarter ended June 30, 2026 (Q1FY27), driven by a 32% rise in net interest income (NII) and significant expansion in net interest margins (NIM). The Thoothukudi-based private sector bank saw its total income grow to ₹19,008 crore from ₹16,175 crore in the corresponding quarter of the previous year, reflecting robust broad-based expansion across retail and corporate segments. This performance underscores the bank’s focus on asset quality management, with Gross Non-Performing Assets (GNPA) improving by 53 basis points (bps) to 0.69%, enhancing investor confidence in its credit underwriting standards.

The Board of Directors, chaired by Managing Director & CEO Salee S Nair, approved the unaudited financial results on July 27, 2026. The results were reviewed by Joint Statutory Central Auditors Sundaram & Srinivasan and Chandran & Raman, who issued an unmodified limited review report. Pursuant to Regulation 47 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, the bank published these results in eight newspapers, including The Hindu and Business Line, on July 28, 2026.

Financial Performance Highlights

The bank’s profitability metrics showed consistent improvement in Q1FY27. Net interest income rose sharply to ₹765 crore from ₹580 crore YoY, contributing significantly to the bottom line. Total expenditure (excluding provisions) stood at ₹12,897 crore, up from ₹12,052 crore in Q1FY26. Operating profit before provisions jumped 48% to ₹6,111 crore, highlighting efficiency gains. Return on Assets (ROA) improved by 32 bps to 2.14%, while Return on Equity (ROE) expanded by 263 bps to 15.93%.

Asset Quality and Capital Position

Asset quality indicators remained stable with sequential improvements. The Gross Non-Performing Assets (GNPA) ratio declined to 0.69% from 1.22% in the previous year, while the Net NPA ratio eased to 0.17% from 0.33%. The Provision Coverage Ratio (PCR) stood at 75.36% without technical write-offs. The bank maintained a robust capital base with a Capital Adequacy Ratio (CAR) of 32.33% under Basel III norms as of June 30, 2026, up 78 bps YoY. The Common Equity Tier 1 (CET1) ratio was 31.30%, well above regulatory requirements.

Deposit and Advance Growth

Total deposits grew 19.71% YoY to ₹64,409 crore, providing a stable funding base. Cash at Bank and Deposits (CASA) ratio stood at ₹16,852 crore, up 16.94% from ₹14,411 crore in Q1FY26. Gross advances expanded 27.01% YoY to ₹57,306 crore, with Retail, Agriculture, and MSME (RAM) accounts constituting 94.38% of the portfolio. Retail Banking emerged as the primary profit driver, contributing ₹4,428 crore to segment results, up from ₹2,609 crore YoY.

What the Numbers Show

The divergence between the 48% surge in pre-provision operating profit and the 35% rise in net profit suggests that tax expenses and specific provisions absorbed some of the operational gains. However, the sustained improvement in GNPA ratios alongside rising retail banking revenues indicates a healthy credit cycle. The expansion of NIM by 45 bps to 4.29% demonstrates effective yield management amidst competitive deposit rates. The bank’s decision to discontinue the Investment Fluctuation Reserve (IFR), transferring ₹1,296 crore to General Reserve, aligns with recent RBI guidelines and strengthens its core equity buffer for future growth initiatives.

Tamilnad Mercantile Bank Ltd has transitioned to a new email domain, @tmb.bank.in, replacing the previous @tmbank.in address in compliance with RBI guidelines. The bank confirmed that the old email domain will remain active for a period of 30 days to ensure continuity in receiving emails. This change impacts the bank's official communication channels with stakeholders and regulatory bodies.

The transition follows Regulation 46 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. The bank informed the National Stock Exchange of India Limited and BSE Limited about the update to ensure records are updated accordingly. The new domain aligns with revised operational standards mandated by the central bank.

Email Domain Transition Details

The following table outlines the specific changes to the bank's email addresses:

The notification, signed by Swapnil Yelgaonkar, Company Secretary & Compliance Officer, was dispatched on July 21, 2026. Stakeholders are advised to update their contact lists to reflect the new domain while the old domain remains temporarily functional.