Mountbatten Plan — Key Changes

Entry	Year	Description	Impact
Indian Independence Act 1947	1947	While not an 'amendment' to an existing Indian constitution, this Act served as the foundational legal instrument that gave effect to the Mountbatten Plan. It fundamentally altered the constitutional status of India, creating two independent Dominions and ending British rule. It also provided for the temporary governance of both Dominions under the adapted Government of India Act 1935 until their own Constituent Assemblies framed new constitutions.	Legally formalized the partition of India and Pakistan, granted independence, and established the constitutional framework for the transition. It effectively repealed British paramountcy and set the stage for the drafting of the Indian Constitution.
Constitution (Seventh Amendment) Act	1956	This amendment, primarily known for the States Reorganisation Act, was a long-term consequence of the Mountbatten Plan's handling of princely states. It reorganized Indian states on a linguistic basis and abolished the Part A, B, C, D classification of states, which had been a temporary arrangement post-integration of princely states.	Streamlined India's federal structure, consolidating the territories that had acceded to India following the lapse of paramountcy. It addressed the administrative and political complexities arising from the diverse nature of the former princely states and British Indian provinces.