Section 18 in The Central Goods and Services Tax Rules, 2017
18. Display of registration certificate and Goods and Services Tax Identification Number on the name board.
(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.
