The Exchange has received the disclosure under Regulation 29(1) of SEBI (Substantial Acquisition of Shares & Takeovers) Regulations, 2011 for Dr Mahalingam Vasudevan

Date: September 21st, 2026 From Mahalingam Vasudevan 39, Avia Enclave, Balakrishna Street, Nanmangalam, Chennai – 600117 1. BSE Limited Phiroze Jeejeebhoy Towers Dalal Street, Mumbai- 400001 2. National Stock Exchange of India Limited Exchange Plaza, 5th Floor, Bandra-Kurla Complex, Bandra (E), Mumbai - 400 051 3. CALIFORNIA SOFTWARE COMPANY LIMITED Workflo, Greeta Towers,Industrial Estate,Perungudi OMR Phase 1,Chennai- 600096,Chennai, Chennai, Tamil Nadu, India, 600096. Dear Sir, Sub: Disclosure under Regulation 29 (1) of SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 Please find attached herewith a disclosure made under regulation 29 (1) of SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 regarding encumbrance of shares by way of pledge of 75,00,000 (Seventy Five Lakhs only) Equity Shares of Promoter Dr, Mahalingam Vasudevan, Managing Director and CEO of M/s CALIFORNIA SOFTWARE COMPANY LIMITED Thanking you Yours faithfully Authorised Signatory Dr. Vasudevan Mahalingam Promoter Format for disclosures under Regulation 29 (1) of SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 Name of the Target Company (TC) CALIFORNIA SOFTWARE COMPANY LIMITED Name(s) of the acquirer and Persons Acting DR MAHALINGAM VASUDEVAN in Concert (PAC) with the acquirer Whether the acquirer belongs to Promoter/Promoter group Name(s) of the Stock Exchange(s) where the BSE LIMITED shares of TC are Listed NSE LIMITED % w.r.t. total % w.r.t. total share/voting diluted Details of the acquisition / disposal as follows Number capital share/voting wherever capital of the applicable (*) TC (**) Before the acquisition under consideration, holding of : 38496620 62.26% 62.26% a) Shares carrying voting rights b) Shares in the nature of encumbrance (pledge/ lien/ non-disposal undertaking/ others) c) Voting rights (VR) otherwise than by shares d) Warrants/convertible securities/any other instrument that entitles the acquirer to receive shares carrying voting rights in the T C (specify holding in each category) 38496620 62.26% 62.26% e) Total (a+b+c+d) Details of sale a) Shares carrying voting rights sold b) VRs sold otherwise than by 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) acquired/sold d) Shares encumbered / 75,00,000 12.48% 12.48% invoked/released by the acquirer 75,00,000 12.48% 12.48% e) Total (a+b+c+/-d) After the acquisition/sale, holding of: 3,09,96,620 49.79% 49.79% a) Shares carrying voting rights 75,00,000 12.48% 12.48% b) Shares encumbered with the acquirer c) VRs otherwise than by 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) after acquisition 38496620 62.26% 62.26% e) Total (a+b+c+d) Mode of sale (e.g. open market / off-market / public issue / rights issue / preferential OFF-MARKET (PLEDGE CREATION) allotment / inter-se transfer etc). Date of sale of shares / VR or date of receipt of intimation of allotment of shares, 18.09.2026 whichever is applicable Equity share capital / total voting capital of 62247124 Equity shares of Rs. 10/- each the TC before the said acquisition / sale Equity Share Capital – Rs. 33,58,55,200/- Equity share capital/ total voting capital of 62247124 Equity shares of Rs. 10/- each the TC after the said acquisition / sale Equity Share Capital – Rs. 33,58,55,200/- Total diluted share/voting capital of the TC 62247124 Equity shares of Rs. 10/- each after the said acquisition Equity Share Capital – Rs. 33,58,55,200/- (*) 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. Signature of the seller / Authorized Signatory MAHALINGAM VASUDEVAN Place: Chennai Date: 21.09.2026 ******