Vacancy reporting requirements to Career Centres include detailed employer particulars, unique vacancy numbers, and updated information disclosure. Form XXV requires employers to furnish detailed particulars when reporting vacancies to a Career Centre, including establishment details, vacancy description, qualifications, preferences, pay, work location, application mode, contact particulars, recruitment mode, and reservation-related information. The note further requires issuance of a unique vacancy reporting number, its citation in advertisements or recruitment, and reporting of any change in particulars to the Career Centre through approved modes.