The document summarizes the evolution of the basic structure doctrine in India regarding constitutional amendments. It discusses how initially amendments were not restricted, but after 1973's Kesavananda Bharati case, the Supreme Court established that the amendment power cannot destroy the basic features of the constitution. It identifies key post-1973 cases that affirmed democracy, secularism, federalism as basic features. In the end, it raises pertinent issues around the basic structure doctrine and the balance of power between the judiciary and parliament.