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?

1. A

   4 - 1 - 2 - 3

   (a) 4 - 1 - 2 - 3. This order starts with Goa (1961), which is the latest of the four, and ends with Air India’s nationalisation (1953), which is the earliest. The sequence is reversed at both ends. This option is not the key.

2. B

   3 - 2 - 1 - 4

   (b) 3 - 2 - 1 - 4. Air India was nationalised in 1953; Imperial Bank became SBI in 1955; Kerala’s first communist ministry took office in 1957; Goa was liberated in 1961. That is 3–2–1–4. This option is the official key.

3. C

   4 - 2 - 1 - 3

   (c) 4 - 2 - 1 - 3. Goa cannot lead, and Air India cannot finish, this chronology. This option is not the key.

4. D

   3 - 1 - 2 - 4

   (d) 3 - 1 - 2 - 4. It starts correctly with Air India but places the Kerala communist government (1957) before SBI’s renaming (1955). This option is not the key.

Summary. Official key is (b) 3 - 2 - 1 - 4. Dates: Air India nationalised 1953; Imperial Bank renamed State Bank of India 1955; E.M.S. Namboodiripad ministry in Kerala 1957; Goa annexed 1961. That is the only order that respects those four years. Sequences that put Goa first or Kerala before SBI fail the timeline.