During the Rig Vedic period Niska was an ornament of

ear
neck
arm
wrist

The correct answer is (b).

A nuska is a type of necklace worn in ancient India. It is made of gold or silver and is often decorated with beads or jewels. The nuska was considered to be a symbol of wealth and status, and it was often worn by royalty and other high-ranking individuals.

The nuska is mentioned in several Vedic texts, including the Rig Veda. In the Rig Veda, the nuska is described as a “necklace of gold” that is “adorned with jewels.” The nuska is also mentioned in the Atharva Veda, where it is described as a “necklace of gold” that is “adorned with pearls.”

The nuska was a popular type of necklace in ancient India, and it is still worn by some people today. The nuska is a symbol of wealth, status, and beauty, and it is often worn as a way to show off one’s social standing.

The other options are incorrect because they are not types of necklaces. An earring is a piece of jewelry that is worn on the ear. An armlet is a piece of jewelry that is worn on the arm. A bracelet is a piece of jewelry that is worn on the wrist.