The correct answer is option 'D': 2-3-1.

Explanation:

The events mentioned in the question are all related to the Indian independence movement and took place in the early 20th century. Let's look at each event and arrange them chronologically:

1. Establishment of Punjab naujawan Bharat Sabha:
The Punjab naujawan Bharat Sabha was established in 1926 by Bhagat Singh and his associates. It was a revolutionary organization that aimed to mobilize the youth and fight against British colonial rule. This event took place before the other two mentioned events.

2. Saunders' Murder:
Saunders' Murder refers to the assassination of British police officer John Saunders by Bhagat Singh and his associates. This event took place on December 17, 1928, in Lahore. Bhagat Singh and his comrades planned and executed this act as a response to the death of Lala Lajpat Rai, who had succumbed to injuries sustained during a protest against the Simon Commission. The murder of Saunders was a significant event that brought Bhagat Singh and his group into the limelight and marked the beginning of their active involvement in the independence movement.

3. Chittagong armoury raid:
The Chittagong armoury raid, also known as the Chittagong uprising, was a revolutionary attempt to seize the British armory in Chittagong, Bengal (now in Bangladesh). Led by Surya Sen, the raid took place on April 18, 1930. The goal was to obtain weapons and ignite a mass uprising against British rule. However, the raid was not entirely successful, and several revolutionaries were captured or killed. This event occurred after the other two mentioned events.

Therefore, the correct chronological order of the events is 2-3-1, with the establishment of Punjab naujawan Bharat Sabha preceding Saunders' Murder, and the Chittagong armoury raid happening after both of these events.