California Software Co. Ltd. — Major Shareholding Notification 2026

Mar 28, 2026

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California Software Company Limited

CIN: L72300TN1992PLC022135

Registered Office: Workflo, Greeta Towers, Industrial Estate, Perungudi, OMR Phase 1, Chennai 600096

Phone +91 94448 60882

Email: investor@calsoftgroup.com www.calsofts.com

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Date: 26/03/2026

To, To, BSE LIMITED NATIONAL STOCK EXCHANGE OF INDIA LTD., Security Code – 532386 Symbol – CALSOFT Department of Corporate Services Exchange Plaza, 5th Floor, Plot No. C/1, G Phiroze Jeejeebhoy Tower Block, Bandra Kurla Complex, Bandra (East), Dalal Street, Mumbai – 400 051 Mumbai – 400 001

Sub: Disclosure under Regulation 31(4) of the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 for the financial year ended on March 31, 2026

Please find enclosed herewith disclosure under Regulations 31(4) of Securities and Exchange Board of India (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 for the financial year ended March 31, 2026 received from Mr. MAHALINGAM VASUDEVAN, Promoter of the Company.

Kindly take the same on record.

Thanking you.

Yours faithfully,

For CALIFORNIA SOFTWARE COMPANY LIMITED

KRISHNAMOORTHY VENKATESAN COMPANY SECRETARY & COMPLIANCE OFFICER

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Date: 26/03/2026

To,

BSE LIMITED Department of Corporate Services Phiroze Jeejeebhoy Tower Dalal Street, Mumbai – 400 001

To,

NATIONAL STOCK EXCHANGE OF INDIA LTD., Exchange Plaza, C-1, Block G, Bandra Kurla Complex, Bandra (E), Mumbai – 400 051

To,

CALIFORNIA SOFTWARE COMPANY LIMITED Workflo, Greeta Towers, Industrial Estate, Perungudi OMR Phase 1, Chennai-600096

Dear Sir/Madam,

Sub: Declaration under Regulation 31(4) of the SEBI (SAST) Regulations, 2011 in capacity as Promoter of the Company

In compliance with the provisions of Regulation 31(4) of SEBI (Substantial Acquisition of Shares & Takeovers) Regulations, 2011, I, Mr. MAHALINGAM VASUDEVAN, hereby declare in capacity as Promoter, that no encumbrance on shares of M/s CALIFORNIA SOFTWARE COMPANY LIMITED have been made directly or indirectly, other than those already disclosed to the Stock Exchanges during the Financial Year ending 31st March, 2026.

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Kindly take the same on your record.

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MAHALINGAM VASUDEVAN Promoter and Managing Director (DIN: 01608150)