TRADE, COMMERCE AND INTERCOURSE WITHIN THE TERRITORY OF INDIA
303. Restrictions on the legislative powers of the Union and of the
States with regard to trade and commerce.-
anything in article 302, neither Parliament nor the Legislature of a
State shall have power to make any law giving, or authorising the
giving of, any preference to one State over another, or making, or
authorising the making of, any discrimination between one State and
another, by virtue of any entry relating to trade and commerce in any
of the Lists in the Seventh Schedule.
(2) Nothing in clause (1) shall prevent Parliament from making any law
giving, or authorising the giving of, any preference or making, or
authorising the making of, any discrimination if it is declared by
such law that it is necessary to do so for the purpose of dealing with
a situation arising from scarcity of goods in any part of the
territory of India.