When was the first public meeting of Goa Revolution held?

The correct answer is: C. 1959

The first public meeting of Goa Revolution was held on 18 June 1959 at Azad Maidan in Panaji, Goa. The meeting was organized by the Goa Liberation Movement (GLM), a political party that was formed in 1956 with the goal of liberating Goa from Portuguese rule. The meeting was attended by thousands of people, including many prominent Goans, such as Dr. Ram Manohar Lohia, who was a leading Indian politician and freedom fighter. The meeting was a major success and helped to galvanize support for the Goa Liberation Movement.

The other options are incorrect because:

• Option A is incorrect because the first public meeting of Goa Revolution was held in 1959, not 1940.
• Option B is incorrect because the first public meeting of Goa Revolution was held in 1959, not 1946.
• Option D is incorrect because the first public meeting of Goa Revolution was held in 1959, not 1967.