Government department shall be treated as separate from any other Ministry or Government department. (3) This Act shall apply to the processing of personal data, wholly or partly, by automated means and to any processing otherwise than by automated means where the personal data form part of a filing system or are intended to form part of a filing system. (4) This Act shall not apply to – (a) the exchange of information between Ministries, Government departments and public sector agencies where such exchange is required on a need-to-know basis; (b) the processing of personal data by an individual in the course of a purely personal or household activity. (5) Subject to section 44, this Act shall apply to a controller or processor who – (a) is established in Mauritius personal data in the and processes context of that but uses establishment; and (b) is not established in Mauritius equipment in Mauritius for processing personal data, other than for the purpose of transit through Mauritius.