Dear Sir, With reference to above, we are enclosing herewith the Certificate issued under Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018, by M/s. Skyline Financial Services Pvt. Ltd, the Registrar and Share Transfer Agent of the Company, for the quarter & half year ended 30th September, 2026. Kindly consider and take our submission in your records. Thanking You.

CRYSTAL BUSINESS SYSTEM LIMITED CIN: L92100DL1994PLC059093 Registered Office: 37, Second Floor, Rani Jhansi Road, Motia Khan, Paharganj, New Delhi- 110055 Email ID: cbnl.delhi@gmail.com, Website: www.sadhna.com Phone: 91-11-23552627, Fax No.: 91-11-23524610 Date: 15.10.2026 BSE Limited Metropolitan Stock Exchange Limited Phiroze Jeejeebhoy Towers, 205(A), 2nd floor, Piramal Agastya Corporate Park, Dalal Street, Kamani Junction, LBS Road, Kurla (West), Mumbai- 400001 Mumbai-400070 Scrip Code: 540821 Scrip Symbol: CRYSTAL Sub: Submission of Certificate under Regulation 74(5) of the SEBI (Depositories & Participants) Regulations, 2018 for the Quarter & half year ended 30th September, 2026. Dear Sir, With reference to above, we are enclosing herewith the Certificate issued under Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018, by M/s. Skyline Financial Services Pvt. Ltd, the Registrar and Share Transfer Agent of the Company, for the quarter & half year ended 30th September, 2026. Kindly consider and take our submission in your records. Thanking You. For Crystal Business System Limited Balmukund Shyamsundar Tiwari Managing Director DIN: 02566683 Place: New Delhi Sk-jifie Skyline Financial Services Pvt. Ltd. SEBI Registered Category-1 Registrars & Share Transfer Agent .. Pvt.LId. Regd. & Corp. Office: 0·153 A, 1st Floor, Okhla Industrial Area, Phase·I, New Delhi ·110 020 Tel.: +91-11-40450193·97, 26812682-83, E-mail: Info@skylinerta.com, Website: www.skyllnerta.com CIN No.: U74899DL 1995PTC071324 Dated: October 01. 2026 Ref: SFSPL/RTA/ September/2026 ThE Company Secretary CRYSTAL BUSINESS SYSTEM l TD.(FORMERLY KNOWN AS SADHNA BROADC 37 SECOND FLOOR, RANI JHA51 ROAD, MOTIA KHAN PAHARGANJ NEW DelHI 110055 5utject: Confirmation Certificate in the matter of Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018. Decr Sir, In accordance with Regulation 74(5) of the sEBI (Depositories and Participants) Regulations, 2018 for the Quarter ended 30th September, 2026, W.r.t. No physical share certificates received for dematerialization of securities from the depository participant (Equity Shares) of the Company, " CRYSTAL BUSINESS SYSTEM lTD.(FORMERlY KNOWN AS SADHNA BROADe " elN: L92100Dl1994PlCOS9093. Thi~ is for your information and records. Thanking you, Parveen Sharma Authorised Signatory Mumbai Office: A-50S, Dattani Plaza, Andheri Kurla Road, Safeed Pool, Mumbai-400072 Tel.: +91-22-49721245, 28511022, E-mail: mumbai@skylinerta.com