6Power to enter land and carry out relevant operations pursuant to notice of entry
On or after the date mentioned in the notice of entry, or, if a notice of entry is upheld on appeal (with or without modification) after service of a counter-notice, after the notice of entry has been upheld, any person authorised in writing in that behalf by the Board may enter on the land and carry out on that land or on any adjoining land of the Board the relevant operations of the nature specified in the notice during the hours and in the manner so specified.