Disclosure under SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011

INDIAN Bank DEPT : SECRETARIAL ~ REF. No. : SEC/ST.EX.STT/60/2026-27 EXPERIENCE NEXT-GEN BANKING DATE : July 23, 2026 National Stock Exchange of India Ltd., BSE Ltd. Exchange Plaza, 5th Floor, Department of Corporate Services (Listing), Plot No.C/1, G Block, First Floor, New Trading Wing, Bandra-Kurla Complex, Bandra (E), Rotunda Building, P J Towers, Mumbai – 400 051. Dalal Street, Fort, Mumbai – 400 001. SCRIP CODE: SOUTHBANK SCRIP CODE: 532218 Dear Madam/Sir, Sub: Disclosure under SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 Pursuant to Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, and applicable provisions of SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 and in furtherance to our letter SEC/ST.EX.STT/17/2026-27 dated May 07, 2026,we wish to inform you that The South Indian Bank Limited ("the Bank") has received an intimation dated July 23, 2026 from M/s Kotak Mahindra Mutual Fund (KMMF) inforing that they have acquired equity shares of the Bank constitution more than 5.00% of the issued equity share capital. The details of acquisition intimated by M/s Kotak Mahindra Mutual Fund(KMMF) is attached herewith and made available on the Bank’s website at www.southindianbank.bank.in. Kindly take the same in your records. Yours faithfully, (JIMMY MATHEW) COMPANY SECRETARY Encl.: as above The South Indian Bank Ltd., Regd. Office: Thrissur, Kerala Head Office: S.I.B. House, T.B. Road, P.B. No: 28, Thrissur - 680001, Kerala (Tel) 0487-2420 020, (Fax) 91 487-244 2021, e-mail: sibcorporate@sib.bank.in CIN: L65191KL 1929PLC001017, Toll Free (India) 1800-102-9408, 1800-425-1809 (BSNL) www.southindianbank.bank.in e kotak July 23, 2026 Mr. Jimmy Mathew SGM & Head - HR & Company Secretary P B No.28, SIB House, TB Road, Mission Quarters, Thrissur , Kerala, 680001 Dear Sir, Sub: D_isclosure under SEBI (Substantial Acquisition of Shares & Takeovers) Regulations, 2011(shares of South Indian Bank Ltd.) We would like to inform you that Kotak Mahindra Mutual Fund (KMMF) has acquired equity shares of South Indian Bank Ltd. constituting more than 5.00% of the issued equity share capital of the company. KMMF has acquired equity shares of South Indian Bank Ltd. through its schemes. The detail of acquisition is attached in the annexure hereto, which is in the format prescribed under Regulation 29(1) of the SAST Regulations. Kindly take the same on record. Thanking you, Yours faithfully, For Kotak Mahindra Asset Management Company Limited Investment Manager - Kotak Mahindra Mutual Fund Jolly Bhatt Compliance Officer Encl: Disclosure under Regulation 29 (I) of SAST Regulations Kotak Mahindra Asset Management Company Limited Investment Managers to: Kotak Mahindra Mutual Fund CIN U65991MH1994PLC080009 6th Floor, Zone IV, Kotak Infinity, T +9122 66056825 Registered Office: Building No.21, Infinity Park, F +9122 67082213 27 BKC, Plot No. C-27, G-Block, Off Western Express Highway, www.kotakmf.com Sandra Kurla Complex, General A KVaidya Marg, Malad (E), Sandra East, Mumbai -400 051, Mumbai-400 097, India. Maharashtra, India. Format for Disclosures under Re2uiatjon 220} of SEBI <Substantial Acquisition of Shares and Takeovers} Bezulatjons, 2011 Part-A-Details of the Acquisition South Indian Bank Ltd. Name of the Target Company (TC) Kotak Mahindra Mutual Fund Name(s) of the acquirer and Persons Acting in Concert (PAC) with the acquirer Whether the acquirer belongs to Promoter/Promoter group BSE Limited (BSE) Name(s) of the Stock Exchange(s) where the shares National Stock Exchange of India Limited (NSE) of TC are Listed % w.r.t. total % w.r.t. total share/voting diluted Details of the acquisition as follows Number capital share/voting wherever capital of the applicable(*) TC(**) Before the acquisition under consideration, holding of acquirer along with PACs of: a) Shares carrying voting rights 120361168 4.5981% 4.5981% b) Shares in the nature of encumbrance (pledge/ lien/ non-disposal undertaking/ others) c) Voting rights (YR) otherwise than by equity shares d) Warrants/convertible securities/any other instrument that entitles the acquirer to receive shares carrying voting rights in the TC (specify holding in each category) a) Total (a+ b+ c+ d) 120361168 4.5981% 4.5981% Details of acquisition a) Shares carrying voting rights acquired 14694332 0.5614% 0.5614% _b) VRs acquired otherwise than by equity shares c) Warrants/convertible securities/any other instrument that entitles the acquirer to receive shares carrying voting rights in the TC (specify holding in each ------~- /. :-...~anag 0 , c;;, ,.._ ~.Yew>' ,. category) acquired d) Shares in the nature of encumbrance (pledge/ lien/ non-disposal undertaking/ others) e) Total (a+ b+ c+ d) 14694332 0.5614% 0.5614% After the acquisition, holding of acquirer along with PACs of: a) Shares carrying voting rights 135055500 5.1595% 5.1595% b) VRs otherwise than by equity shares c) Warrants/convertible securities/any other instrument that entitles the acquirer to receive shares carrying voting rights in the TC (specify holding in each category) after acquisition d) Shares in the nature of encumbrance (pledge/ lien/ non-disposal undertaking/ others) e) Total (a+ b+ c+ d) 135055500 5.1595% 5.1595% Mode of acquisition ( e.g. open market / pub! ic issue / Open market rights issue /preferential allotment / inter-se transfer/encumbrance, etc.) Salient features of the securities acquired including time till redemption, ratio at which it can be converted into equity shares, etc. Date of acquisition of/ date of receipt of intimation July 21, 2026 of allotment of shares / VR/ warrants/convertible securities/any other instrument that entitles the acquirer to receive shares in the TC. Equity share capital / total voting capital of the TC before the said acquisition 2,61,80,66,063 equity shares of Rs. l Equity share capital/ total voting capital of the TC after the said acquisition 2,61,80,66,063 equity shares of Rs. I Total diluted share/voting capital of the TC after the said acquisition 2,61,80,66,063 equity shares of Rs. 1 Part-B*** Name of the Target Company: South Indian Bank Ltd. Name(s) of the acquirer and Whether the acquirer PAN of the acquirer and/ or Persons Acting in Concert belongs to Promoter/ PACs (PAC) with the acquirer Promoter group Kotak Mahindra Mutual Fund No Signature of the acquirer / Authorized Signatory: Compliance Officer Place: Mumbai Date: July 23, 2026 Note: (*) Total share capital/ voting capital to be taken as per the latest filing done by the company to the Stock Exchange under Clause 35 of the listing Agreement. (**) Diluted share/voting capital means the total number of shares in the TC assuming full conversion of the outstanding convertible securities/warrants into equity shares of the TC. (***) Part-8 shall be disclosed to the Stock Exchanges but shall not be disseminated.