Consider the following events:
1. The first democratically elected communist party government formed in a State in India.
2. India's then largest bank, 'Imperial Bank of India', was renamed 'State Bank of India'.
3. Air India was nationalised and became the national carrier.
4. Goa became a part of independent India.
Which of the following is the correct chronological sequence of the above events?
Air India was nationalised in 1953. The Government of India passed the Air Corporation Act in 1953 and purchased a majority stake in the carrier from Tata Sons. Imperial Bank of India was nationalised in 1955, with RBI taking a 60 per cent stake, and its name was changed to SBI. The first democratically elected communist party government was formed in a state in India in 1957. In the first general election held to the Kerala state legislative assembly in 1957, the Communist Party of India won 60 seats out of 126. Goa became an independent state of India on 18 Dec 1961, and Goa was freed from the Portuguese. On Dec 18 1961, Operation Vijay was launched by the Indian Government to bring back Goa into India. Therefore correct chronological sequence is 3-2-1-4