Some reasons for accepting the same Constitution till today are:
(i) The Constitution of India does not reflect the views of its members alone. It expresses a broad consensus of its time. Many countries of the world have had to rewrite their constitution afresh because the basic values were not accepted to all major social groups or political parties.
(ii) The Constituent Assembly represented the people of India. There was no universal adult franchise at that time. So, the Constituent Assembly could not have been chosen directly by all the people of India. It was elected mainly by the members of existing Provincial Legislatures.
(iii) The Constituent Assembly was dominated by the Indian National Congress, the party that led India's freedom struggle. But the Congress itself included a variety of political groups and opinions. The Assembly had many members who did not agree with the Congress.
(iv) In social terms too, the Assembly represented members from different languages, groups, castes, classes, religions and occupations.
(v) The Constituent Assembly worked in a systematic, open and consensual manner.
