(o)ensuring the safety of—(i)ports, dockyards, lighthouses, lightships, aerodromes and facilities associated with aerial navigation;(ii)railways, tramways, roads, bridges, canals and all other means of transport by land or water;(iii)telegraphs, post offices, signalling apparatus and all other means of communication;(iv)sources and systems of water supply, works for the supply of water, gas or electricity and all other works for public purposes;(v)vessels, aircraft, transport vehicles as defined in the Motor Vehicles Act, 1939 (4 of 1939), and rolling stocks of railways and tramways;(vi)warehouses and all other places used or intended to be used for storage purposes;(vii)mines, oilfields, factories or industrial or commercial undertakings generally, or any mine, oilfield, factory or industrial or commercial undertaking in particular;(viii)laboratories and institutions where scientific or technological research or training is conducted or imparted;(ix)all works and structures being part of, or connected with, anything earlier mentioned in this clause; and(x)any other place or thing used or intended to be used for the purposes of Government or a local authority or a semi-Government or autonomous organisation, the protection of which is considered necessary or expedient for securing civil defence;