1) Indian caste 
Idangai or the left hand is a caste-based division of communities in South India that was in vogue from ancient times right up to the 19th and even the early decades of the 20th century AD. Since India`s independence, the differences have practically vanished.{sfnp|Ghurye|1991|p=359|ps=}{sfnp|Alcock|2001|p=269|ps=} The corresponding division is V....