Like any other professional degree, ACCA requires you to have 3 years of Relevant practical work experience. You may work in any company/firm, Indian or international, provided you work in the accounting or finance department.
The work experience requirement is similar to the Indian CA articleship, except the fact that ACCA holds no restriction regarding the timing of this practical work experience. You can have relevant work experience before, during, or after your examinations. You can work in between a few exams, take a break, switch firms or companies (provided you can keep securing jobs), and complete the examinations as well as the work experience at your own pace.