FINANCE, PROPERTY, CONTRACTS AND SUITS
Article 285: Exemption of property of the Union from State taxation
(1) The property of the Union shall, save in so far as Parliament may by law otherwise provide, be exempt from all taxes imposed by a State or by any authority within a State.
(2) Nothing in clause (1) shall, until Parliament by law otherwise provides, prevent any authority within a State from levying any tax on any property of the Union to which such property was immediately before the commencement of this Constitution liable or treated as liable, so long as that tax continues to be levied in that State.
About Constitution of India
WE, THE PEOPLE OF INDIA, having solemnly resolved to constitute India into a SOVEREIGN SOCIALIST SECULAR DEMOCRATIC REPUBLIC and to secure to all its citizens: JUSTICE, social, economic and political; LIBERTY of thought, expression, belief, faith and worship; EQUALITY of status and of opportunity; and to promote among them all FRATERNITY assuring the dignity of the individual and the unity and integrity of the Nation; IN OUR CONSTITUENT ASSEMBLY this twenty-sixth day of November, 1949, do HEREBY ADOPT, ENACT AND GIVE TO OURSELVES THIS CONSTITUTION