Service of notices: prescribed personal, electronic and substituted modes including affixation and newspaper publication where service fails. Service of notices and orders may be effected by personal delivery, authorised agent, fax, electronic mail or instant messaging, courier, speed post or registered post to the person's residence, last known residence, or place of business or work, with postal consignments sent with acknowledgement due. Fax transmissions must note page count for annexures; electronic communications must be digitally signed by the competent authority and bouncing does not constitute valid service. If these modes fail, the notice may be affixed to the outer door or another conspicuous part of the premises with a written report witnessed by two persons; if that is not possible, the notice must be published in an English national daily and a widely circulated regional-language newspaper.