Whch is called the key to understanding the Indian Constituiton?A. Preamble.
There are four main pillers of Indian Constituion; Preamble, Fundamental rights, Fundamental duties and Directive principles of state policy. Among these four pillars Preamble is the soul of Indian Constituion. In preamble the fundamental aim and policies of Indian Constituion is described. Also India is described in preamble. Thats why preamble is called the key to understanding the Indian constituiton.