South India includes states of Andhra Pradesh, Karnataka, Kerala, Tamil Nadu and Telangana, as well as the three union territories of Andaman and Nicobar Islands, Lakshadweep and Puducherry. It's in the shape of an inverted triangle bound by the Arabian Sea on the west, by the Bay of Bengal on the east and Vindhya and Satpura ranges on the north.

The majority of the individuals in South India speak one of the four major Dravidian languages: Tamil, Telugu, Kannada, and Malayalam.

The Deccan plateau is the elevated region bound by the mountain ranges. The region contains a tropical climate and depends on monsoons for rainfall. The tropical wet and dry climate, drier than areas with a tropical monsoon climate. Winter and early summer are long and dry periods. The region is home to one of the largest populations of endangered Indian elephant and Bengal tiger in India. Other threatened and endangered species found in the region include grizzled giant squirrel, grey slender loris, sloth bear, Nilgiri tahr, Nilgiri langur, lion-tailed macaque, and Indian leopard.

Hinduism is the major religion with about 80% of the population adhering to it. About 11% of the population follow Islam and 8% follow Christianity.