This study originated with this objective in view, to make a comparative study of different constitutions in the world, to make a detailed study of the whole subject, and to make some humble suggestions for resolving the said conflict relating to the amendment of the said basic features of the Constitution of India on the basis of the detailed analysis to be so made in this study. The amending clauses of a total of 160 constitutions of the world have been studied for the purposes of this study in a comparative and analytical manner. Various aspects of the constitutional amendment, relating to its theory, nature, law and practice, have been studied in detail. The doctrine of basic features of the Constitution has been scrutinized in a comprehensive, analytical and critical manner.