Thachanadan is an unclassified
Southern Dravidian language spoken by a
Scheduled tribe
The Scheduled Castes (SCs) and Scheduled Tribes (STs) are officially designated groups of people and among the most disadvantaged socio-economic groups in India. The terms are recognized in the Constitution of India and the groups are designa ...
of
India
India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
. Dissimilar to other Dravidian languages, its most likely affinities are to
Mullu Kurumba, with which it has 66-72%
lexical similarity
In linguistics, lexical similarity is a measure of the degree to which the word sets of two given languages are similar. A lexical similarity of 1 (or 100%) would mean a total overlap between vocabularies, whereas 0 means there are no common words. ...
.
References
Dravidian languages
{{Dravidian-lang-stub