In India some of the states are very big in population. UP is as much populated as the 5th or 6th most populated country in the world. States like Bihar, West Bengal, Maharashtra, Madhya Pradesh, Rajasthan and Tamilnadu may rank among the top 20 most populated countries. Being constituents of a country, the states cannot have as much powers as the countries. However they should have as much powers as the states in United States of America or any other country. In India the Constitution gives the subjects over which the Parliament i.e.Central Legislature has exclusive powers to legislate(Union List), subjects over which States have exclusive powers(State List) and subjects on which both Parliament and State Legislature can legislate.
With a view to widen the powers of the State Legislatures or Assemblies, commensurate with their size, there is need to set up a Committee to examine the subjects which could be brought into the State List from Union and Concurrent Lists