The Institute of Company Secretaries of India (ICSI) has reopened the registration window for the Company Secretary (CS) December 2025 examination. Eligible students can now register through the official website, icsi.edu, starting from 10:00 AM on October 23, 2025 . This period specifically facilitates late examination registration with an additional fee. Candidates can also utilize this window to add further modules to their application or apply for exemptions based on higher academic qualifications, all subject to a late fee. The absolute deadline for all such submissions is October 25, 2025 . No registrations or related requests will be accepted after this date. Key Dates for ICSI CS December 2025 Candidates The ICSI has outlined a series of critical dates for candidates undertaking the Company Secretary December 2025 examination. These deadlines encompass late registration opportunities, mandatory pre-exam preparations, and a crucial window for rectifying application details. Adhering to these dates is essential for all students planning to appear for the Executive and Professional Programmes. Activity Start Date/Time End Date/Time Late Examination Registration with Fee October 23, 2025 (10:00 AM) October 25, 2025 Addition of Modules with Late Fee October 23, 2025 (10:00 AM) October 25, 2025 Exemptions Based on Higher Qualifications October 23, 2025 (10:00 AM) October 25, 2025 Training and Development Orientation Programme (TDOP) Completion N/A October 20, 2025 Pre-Examination Test (Pre-ET) Completion N/A October 24, 2025 (5:30 PM) Application Correction Window October 26, 2025 November 21, 2025 (4:00 PM) ICSI CS December 2025 Exams December 22, 2025 December 29, 2025 Application Correction Window Opens October 26 Candidates who have registered for the December 2025 exam can modify their application details during a dedicated correction period. This window will open on October 26, 2025 , and close on November 21, 2025, at 4:00 PM . During this period, students can request changes to four specific aspects of their examination preferences. These include the selected examination centre, the chosen medium for the exam, the registered module, or the chosen elective subject. ICSI has stated that requests for any modifications will not be entertained after November 21, 2025, 4:00 PM, under any circumstances. Mandatory Pre-Examination Test and Training Deadlines ICSI requires all candidates to complete specific preparatory steps before the main examination. Students must complete the Training and Development Orientation Programme (TDOP) by October 20, 2025 . Additionally, the Pre-Examination Test (Pre-ET) must be completed by October 24, 2025, at 5:30 PM . These mandatory requirements ensure candidates are adequately prepared for the professional examination. Completion of these tasks is a prerequisite for appearing in the CS December 2025 exams. Students who have not yet completed these tests should prioritize their completion immediately to avoid disqualification from the examination. ICSI CS December 2025 Examination Schedule The ICSI CS December 2025 examinations are scheduled from December 22, 2025, to December 29, 2025 . This schedule applies to both the Executive and Professional Programmes. Each examination paper will be conducted for a duration of three hours and fifteen minutes. The exam timing is set from 2:00 PM to 5:15 PM . Candidates will receive an initial 15-minute reading time, from 2:00 PM to 2:15 PM, before they can begin writing their answers. Accessing Official Information and Support For complete details, including access to the registration portal, application correction facility, and specific guidelines for the Pre-Examination Test and Training and Development Orientation Programme, students must visit the official Institute of Company Secretaries of India (ICSI) website at icsi.edu. Candidates should rely exclusively on official announcements and notifications from ICSI to ensure they receive accurate and up-to-date information regarding the examination process, deadlines, and any potential changes.