How can a state impose restrictions on trade, commerce or intercourse as per clause (b) of article 304?
A state can impose restrictions on trade, commerce or intercourse as per clause (b) of article 304 by enacting a law that imposes such reasonable restrictions on the freedom of trade, commerce, or intercourse with or within that State as may be required in the public interest. However, no bill or amendment for this purpose can be introduced or moved in the Legislature of a State without the previous sanction of the President.