Section 171 — Services of notices, orders or documents.

171. Services of notices, orders or documents.–(1) Every notice, order or document by or under this 
Act required, or authorised to be addressed to any person may be served on him by delivering the same 
after obtaining signed acknowledgement receipt therefor or by registered post or such means of delivery 
as may be prescribed– 

(a) where the Appropriate Government is the addressee, at the office of such officer as the 
Appropriate Government may prescribe in this behalf; 

(b) where the Appropriate Commission is the addressee, at the office of the Appropriate 
Commission; 

(c) where a company is the addressee, at the registered office of the company or, in the event of 
the registered office of the company not being in India, at the head office of the company in India; 

(d) where any other person is the addressee, at the usual or last known place of abode or business 
of the person. 

(2) Every notice, order or document by or under this Act required or authorised to be addressed to the 
owner or occupier of any premises shall be deemed to be properly addressed if addressed by the 
description of the owner or occupier of the premises (naming the premises), and may be served by 
delivering it, or a true copy thereof, to some person on the premises, or if there is no person on the 
premises to whom the same can with reasonable diligence be delivered, by affixing it on some 
conspicuous part of the premises.