The correct answer is C. The Punnapra-Vayalar revolt of 1946 was a workers’ uprising against the Travancore government.
The revolt was led by the Communist Party of India (CPI) and took place in the Punnapra and Vayalar villages in the Travancore state of India. The revolt was sparked by the Travancore government’s decision to increase taxes on agricultural land and to introduce a new tenancy law that would have made it easier for landlords to evict tenants. The CPI organized a series of protests and strikes against the government’s measures, and the revolt broke out when the government cracked down on the protests.
The revolt was brutally suppressed by the Travancore government, and hundreds of people were killed. The CPI was banned in Travancore, and its leaders were arrested. However, the revolt had a significant impact on the political landscape of Travancore, and it helped to pave the way for the state’s merger with the Indian Union in 1949.
The other options are incorrect. Option A is incorrect because the British administration was not directly involved in the Punnapra-Vayalar revolt. Option B is incorrect because feudal oppression was not the main cause of the revolt. Option D is incorrect because Portuguese rule did not extend to Travancore.