The correct chronological sequence of the events is as follows:

First, the "Second Round Table Conference" took place. This happened in the year 1931 where the Indian National Congress was represented by Mahatma Gandhi. It was an initiative taken by the British government to discuss constitutional reforms in India.

Second event is the "Quit India Movement", which was launched in the year 1942 by the Indian National Congress under the leadership of Mahatma Gandhi. The purpose was to demand an end to British Rule in India.

The last event is the "Mutiny in Royal Indian Navy", which is also known as the Royal Indian Navy Revolt. It occurred in 1946, soon after the end of World War II. Indian sailors revolted against the British officers in the Royal Indian Navy on account of discrimination and mistreatment.

So, the correct sequence is Second Round Table Conference - Quit India Movement - Mutiny in Royal Indian Navy or 3-2-1 as per the options given. Hence, option 3 is the correct answer.