Persons claiming under owner to be bound by agreement

Every person who purchases at a sale, for arrears of land revenue or any other public demand, any land on which is situated a monument or archaeological site and remains in respect of which any instrument has been executed by the owner for the time being under Section 4 or Section 5 and every person claiming title to a monument or archaeological site and remains from, through or under an owner who executed such an instrument shall be bound by such an instrument.