Portuguese were not giving attention on the demand of merger of Goa in India. They wanted to keep Goa under them till it possible. The Portuguese Dictator Olevira Salazar denied to vaccate Goa considered it the symbol of light of West. Beside Goa, Daman, Diu, Dadar and Nagar Haveli were also under Portugal. Efforts to liberate Goa were made at the diplomatic level but with no results. Then under the Goa National Committee, Satyagraha was observed on 18^th June, 1954 and the National flag was hoisted. Inspite of suppressive measures by the Portuguese administration, Dadra and Nagar Haveli were occupied on 22^nd July, 1954 with the efforts of Goa Peoples Party and Independent Goa.

On 15^th August, 1955 Goa movement took a dramatic turn. The Indian Government started Operation Vijay to liberate Goa, Daman and Diu in 1961 under General J.N. Chaudhary. On 19^th December, 1961 Portuguese rulers surrendered at 2.25 P.M. and the Indian flag was hoisted in Goa Daman and Diu.