The principal of basic structure of the Constiution was propounder by the Supreme Court in 1973 in KesavanandaBharati v. Dtate of Kerala and Another, 1 wherein 13 judges sat for 68 days and produced a cluster of judgments running into over a thousand pages. This was indeed a historic decision, because throught their basic structure principle the Supreme Court changed the course of constiutional history by denying the assertion of supremacy of Parliament in matters of amending the Constitution at will solely on the citizen. This principle lays down that hanceforth, that is after April 24, 1973, the validity of all constitutional amendments shall be tested on the touchstone of basic structure of the Constitution.