Constitution of India, 1949
162.Extent of executive power of State.-
Subject to the provisions of this
Constitution, the executive power of a State shall extend to the matters with
respect to which the Legislature of the State has power to make laws.
Provided that in any matter with respect to
which the Legislature of a State and Parliament have power to make laws, the
executive power of the State shall be subject to, and limited by, the executive
power expressly conferred by the Constitution or by any law made by Parliament
upon the Union or authorities thereof.