Service of notices under this chapter Every notice under this chapter may be served
a) by leaving it at the registered office (if any) of such owner, chief agent, manager or occupier aforesaid; or (b) by sending it by post in a letter addressed to such owner, chief agent, manager or occupier at his office, or, if he have more offices than one, at his principal office; or (c) by giving it to such owner, chief agent, manager or occupier