Exhibit 99
August 21, 2026
New York Stock Exchange
11, Wall Street,
New York,
NY 10005
USA
Dear Sir,
Sub: Disclosure
We are pleased to inform you that HDFC Bank Limited acting through GIFT City Branch has completed the issue of total US$ 1,750 million Senior Unsecured Bonds.
The details in relation to above mentioned issuance are as follows:
| Issuer | HDFC Bank Limited acting through its GIFT-City Branch | |||
| Issuer Ratings | Baa3 (Stable) / BBB (Stable) by Moody’s / S&P | |||
| Expected Issue Ratings | Baa3 / BBB by Moody’s / S&P | |||
| Issue Type | Senior Unsecured Fixed Rate Notes | |||
| Format | 144A / Regulation S | |||
| Issue size | US$ 500 Million | US$ 1,250 Million | ||
| Tenor | 3 years | 5 years | ||
| Coupon | 5.159%(Semi Annual, 30/360) | 5.401%(Semi Annual, 30/360) | ||
| Settlement | 26 August 2026 | 26 August 2026 | ||
| Maturity | 26 August 2029 | 26 August 2031 | ||
| Charge or security, if any, created over the assets | Unsecured | |||
| Ranking | Senior Unsecured | |||
| Listing | India INX (India International Exchange (IFSC) Limited) and NSE International Exchange (NSE-IX) | |||
| Special right/interest/privileges attached to the instrument and changes thereof | N/A | |||
| Delay in payment of interest or principal amount from the due date or default in payment of interest or principal | As per the Clauses in the Terms and Conditions of Notes. | |||
| Details of any letter or comments regarding payment/non-payment of interest, principal on due dates, or any other matter concerning the security and /or the assets along with its comments thereon, if any | N/A | |||
| Details of redemption | Redemption at maturity | |||
| ISIN | RegS: USY30909AA69 144A: US42190GAA40 |
RegS: USY30909AB43 144A: US42190GAB23 | ||
Further, we would also like to inform you that the Issuer and the Lead Managers have also executed, inter alia, the Subscription Agreement with Lead Managers appointed for the Issue.
This is for your information and record.
Yours faithfully,
For HDFC Bank Limited
Sd/-
Ajay Agarwal
Company Secretary
Group Head – Secretarial & Group Oversight