A community of people called Manganiyars is well-known for their

  1. pietra dura tradition in Central India
  2. classical vocal music in South India
  3. martial arts in North-East India
  4. musical tradition in North-West India


Manganiyars is a tribal community from Rajasthan (mainly districts of Barmer and Jaisalmer) with a strong musical tradition (classical folk music). The Manganiyar is hereditary communities who make livings as musical performers. Another musical community in Rajasthan is The Langas (song giver).

The correct option is D.