Solution:The Munda and the Oraon of the Chotta Nagpur who live close to each other and share much of their cultural life, belong to Austric and Dravidian speech group respectively.The Austric group of languages of India belong to the Austro-Asiatic sub-family, Represented by languages of Munda or Kol group spoken in central, eastern, and northeastern India.
The dravidian languages are divided into South, SouthCentral, Central and North groups; these groups are further organized into 24 subgroups. The four major literary languages-Telugu, Tamil, Malayalam and Kannada-are recognized by the constitution of India.