Question

what was the basic idea behind decentralisation of the government?

Answer 1

because of decentralization power is not only rested within central and state but also given to local self government.

Answer 2

The most basic idea that can be thought as behind the decentralisation of the government is that there a lot of problems which only be solved well at local level.

It makes it possible for the people to directly participate in decision making which consequently helps them in inculcating a habit of democratic participation.

Also, it reduces the burden over union and state governments in matters of administration.