South India is the region that encompasses the Indian peninsular regiontowards the south of the Vindhya Range . The northern boundaries of the region are marked by the rivers Narmada and Mahanadi . The Southern region is surrounded by the Bay of Bengal in the east, the Indian Ocean in the south and The Arabian Ocean on its west. The Western Ghats and Eastern Ghats and a plateau heartland are a notable part of the geography of south India . The everlasting rivers of south India which form the important water sources for the region are: Tungabhadra, Kaveri, Krishna and Godavari .

The four main states that form the southern part of India are Andhra Pradesh, Karnataka, Kerala and Tamil Nadu and the Union Territory ofLakshadweep and Pondicherry including Yaman, Mahe and Kraikal. On the southern most tip of this region is Kanyakumari , one of the popular religious shrines of the Hindus.

The popularly spoken languages in South India are the Dravidian languages , but some communities like the Konkani speak other than Dravidian languages. The languages mainly spoken in south India are Tamil, Kannada, Telugu, Malayalam, Konkani and Tulu.

With a tropical climate south India is famous for its flora and fauna. South India has flourishing evergreen vegetation. The Western Ghats are full of moist deciduous forests, tropical dry forests, dry deciduous forests and thorny scrub forests. It is common in central Deccan plateau , the high altitude rain forests on the south Western Ghats , the moist forests on the Malabar Coast give a picturesque view of the biodiversity in South India .