Chapter III of CGST Rules,
2017
REGISTRATION
RULE 18. Display of registration certificate and Goods and Services Tax Identification Number on the name board (corresponding section 25)
(1) Every registered person shall display his certificate of registration in a
prominent location at his principal place of business and at every additional
place or places of business.
(2) Every registered person shall display his Goods and Services Tax
Identification Number on the name board exhibited at the entry of his principal
place of business and at every additional place or places of business.