Twelfth Amendment of the Constitution of India

The Constitution (Twelfth Amendment) Act, 1962
Parliament of India
Long title An Act further to amend the Constitution of India.
Citation	12th Amendment
Territorial extent	India
Passed by	Lok Sabha
Passed	14 March 1962
Passed by	Rajya Sabha
Passed	20 March 1962
Assented to	27 March 1962
Commenced	20 December 1961
Legislative history
First chamber: Lok Sabha
Bill title	Constitution (Twelfth Amendment) Bill, 1962
Introduced by	Jawaharlal Nehru
Introduced	12 March 1962
Summary
Incorporated Goa, Daman and Diu as the eighth Union territory of India
Status: Amended

The Twelfth Amendment of the Constitution of India, officially known as The Constitution (Twelfth Amendment) Act, 1962, incorporated Goa, Daman and Diu as the eighth Union territory of India, by amending the First Schedule to the Constitution. India acquired control of Goa, Daman and Diu from Portugal in December 1961. The amendment also amended clause (1) of article 240 of the Constitution to include therein these territories in order to enable the President to "make regulations for the peace, progress and good government of the territory".

The 12th Amendment retroactively came into effect on 20 December 1961, the day following the formal ceremony of official Portuguese surrender, when Governor General Manuel António Vassalo e Silva signed the instrument of surrender bringing to an end 451 years of Portuguese rule in Goa. On 30 May 1987, the union territory was split, and Goa was made India's twenty-fifth state, with Daman and Diu remaining a union territory.