Answer : 2. "इंडोनी नृत्य "
Explanation :

1. Indoni dance is one of the famous folk dances of Rajasthan. This dance is especially performed by the people of Kalbelia caste.

2. Indoni, Shankaria, Panihari, Bagadiya are dances of Kalbelia caste. Kalbelia tribe is mainly known for Kalbelia dance.

3. It is an integral part of their culture. It is performed by all the men and women of this tribe on all occasions of joy and celebration.