Where does the achievements names come from?

[Chieron]

Could also be that the swastika is an ancient religious symbol in Indian religions (Hinduism, Buddhism, Jainism, and Odinism) but that could be stretching it.

Odinism is not an Indian religion..
Though the nazis got the symbol from hinduism, they did not see themselves as Arians in the Indian-culture sense (and had no further connection to it).
The achievement name only refers to Nagaur having the same black-white-red flag as the German Empire, afaik. Otherwise, it's just an alliteration referencing words from either region.

 

[RedBstrd]

The Iron Price - Reference to the Ironborn (fairly analogous to vikings) in A Game of Thrones/A Song of Ice and Fire.

Switzerlake - Probably a reference to an image someone posted from one of their games.

Foremost Servitor of Jagannath - Reference to the wooden icons representing the deity Jagannath.
He is principally revered in the Bengal-delta region and his name has roots (forgive the pun) in various words for "tree" since he may have come out of an earlier tree-revering religious practice.

Bengal Tiger - Since the name of Babur, founder of the Mughal dynasty, means "tiger," the animal represents the Timurid-India link. The achievement also references Bengali tigers, plus the warlord Timur (see the Timurid national idea "Unleash the Tiger"). There was also a children's book called Timur the Tiger and a Magic: the Gathering card called Temur Sabertooth.

 

[Noel84]

Odinism is not an Indian religion..
Though the nazis got the symbol from hinduism, they did not see themselves as Arians in the Indian-culture sense (and had no further connection to it).
The achievement name only refers to Nagaur having the same black-white-red flag as the German Empire, afaik. Otherwise, it's just an alliteration referencing words from either region.

Do you seriously think the arian connection is unintentional...

 

[Daddl]

Today, Nagaur is a district of the Indian state of Rajasthan ("Land of the Kings"), named Rajputana ("Land of the Rajput") in the past under British rule. Can't find out though if they really had a flag similar to the one of the German Reich or if this is just by chance or made by Paradox solely to be able to have another crazy achievement. Was Nagaur always there and the achievement came later or were they introduced at the same time?

 

[irstasbanaani]

If my memory serves right, Nagaur was there before the achievement. It wasn't until a many people started wondering about the flag that the achievement was added. The flag is actually that of Kishangarh State.