A flexible Constitution is one that can be changed by ordinary law making process and the one which requires a special procedure for amendment is called rigid India is multilingual, multicultural and multiethnic, hence some amount of rigidity is necessary to maintain, the federation in a wholesome manner. The Constitution is like a living organism. It is static, yet dynamic; it is hard, yet it is soft. It must adapt to the requirement of the people in changing times and circumstances. It must permit change when people want for the same and it must be strong enough to resist disintegration and prevent chaos. A good Constitution inculcates good values of fellow feeling, tolerance, reciprocity, generosity, truthfulness and straight forwardness in the minds of people.
The constitution of India is a fine blend of rigidity and flexibility for amendment of federal provisions 2/3rd majorities in both houses of the parliament and ratification by at least half of the States is required. The procedure is hard and it is in the interest of the nation which is so vast and diverse.
Parliamentary system of government, rule of law and legislative procedure in India follow the lines of British constitution. The preamble and the supreme court have been designed as per the U.S. model. The centre has been strengthened on the basis of Canadian constitution. The Union, State and concurrent lists have been drawn up as per Australian Constitution. The Directive Principle are of Irish pattern. India has selected collective responsibility by opting for cabinet system of government as per the British pattern.