The correct answer is D. 1961.
Goa was liberated from Portuguese rule on December 19, 1961, by the Indian Armed Forces. The operation was code-named Operation Vijay.
The Portuguese had been in control of Goa since the 16th century. The Indian government had been trying to negotiate Goa’s independence for many years, but the Portuguese had refused to give up the territory.
In 1961, the Indian government decided to take military action to liberate Goa. The Indian Armed Forces launched a surprise attack on Goa, and the Portuguese were quickly defeated.
Goa was formally integrated into India on December 20, 1961.
Option A is incorrect because Goa was not liberated from Portuguese rule in 1960.
Option B is incorrect because Goa was not liberated from Portuguese rule in 1956.
Option C is incorrect because Goa was not liberated from Portuguese rule in 1958.