Partition and Independence — Key Changes

Entry	Year	Description	Impact
Indian Independence Act 1947	1947	This was not an amendment to an existing Indian law but a foundational Act of the British Parliament that formally ended British rule and partitioned British India into two independent dominions: India and Pakistan. It superseded the Government of India Act 1935 in many respects.	Legally established the independent states of India and Pakistan, defined their initial territories, provided for the lapse of British paramountcy over princely states, and outlined the interim constitutional arrangements until new constitutions were framed by their respective Constituent Assemblies.
Adaptation of Laws Order, 1947	1947	Issued by the Governor-General, this order adapted existing Indian laws (including the Government of India Act 1935) to suit the new constitutional reality of two independent dominions. It was crucial for legal continuity during the transition period.	Ensured that the legal framework of British India could continue to operate in the newly independent nations, with necessary modifications, preventing a legal vacuum and facilitating the smooth functioning of administration until new laws and constitutions were enacted.
Integration of Princely States (Accession & Merger)	1947-1949	This refers to the process, rather than a single amendment, where princely states acceded to India through Instruments of Accession and were subsequently integrated through various merger agreements and constitutional amendments (e.g., Article 370 for J&K, later abrogated).	Crucial for the territorial consolidation of India. It transformed a fragmented political map into a unified nation-state, though the process for some states like J&K left a lasting legacy of dispute and constitutional complexity.