Hyderabad

Bangalore

Parthasarathy Temple - Chennai

Pondicherry

Cochin

South India is the area encompassing India's states of Andhra Pradesh, Karnataka, Kerala and Tamil Nadu as well as the union territories of Lakshadweep and Pondicherry, occupying 19.31% of area. South India lies in the peninsular Deccan Plateau and is bounded by the Arabian Sea, Indian Ocean and the Bay of Bengal in the west, south and east respectively. The geography of the region is diverse, encompassing two mountain ranges — the Western Ghats and Eastern Ghats and a plateau heartland. Godavari, Krishna, Tungabhadra and Kaveri rivers are important non-perennial sources of water. Inhabitants of South India are referred to as South Indians. A majority of South Indians speak one of the five Dravidian languages — Kannada, Malayalam, Tamil, Telugu and Tulu. During its history, a number of dynastic kingdoms ruled over parts of South India whose invasions across southern and southeastern Asia impacted the history and cultures of modern nation-states such as Sri Lanka, Indonesia, Thailand and Malaysia. The region was colonised by Britain and gradually incorporated into the British Empire.

South India is a peninsula in the shape of a vast inverted triangle, bounded on the west by the Arabian Sea, on the east by the Bay of Bengal and on the north by the Vindhya and Satpura ranges. The Narmada flows westwards in the depression between the Vindhya and Satpura ranges. The Satpura ranges define the northern spur of the Deccan plateau. The Western Ghats, along the western coast, mark another boundary of the plateau. The narrow strip of verdant land between the Western Ghats and the Arabian Sea is the Konkan region. The Western Ghats continue south, forming the Malenadu (Canara) region along the Karnataka coast, and terminate at the Nilgiri mountains, an inward (easterly) extension of the Western Ghats. The Nilgiris run in a crescent approximately along the borders of Tamil Nadu with northern Kerala and Karnataka, encompassing the Palakkad and Wayanad hills, and the Satyamangalam ranges, and extending on to the relatively low-lying hills of the Eastern Ghats, on the western portion of the Tamil Nadu - Andhra Pradesh border. The Tirupati and Annamalai hills form part of this range. The low lying coral islands of Lakshadweep are off the south-western coast of India. Sri Lanka lies off the south-eastern coast, separated from India by the Palk Strait and the chain of low sandbars and islands known as Rama's Bridge. The Andaman and Nicobar islands lie far off the eastern coast of India, near the Tenasserim coast of Burma. The southernmost tip of mainland India is at Kanyakumari (Cape Comorin) on the Indian Ocean.

Flora and fauna
Main articles: Wildlife of Karnataka, Wildlife of Tamil Nadu, and Wildlife of Kerala

Bangaram Island in the union territory of Lakshadweep.There is a wide diversity of plants and animals in South India, resulting from its varied climates and geography. Deciduous forests are found along the Western Ghats while tropical dry forests and scrub lands Deccan thorn scrub forests are common in the interior Deccan plateau. The southern Western Ghats have high altitude rain forests called the South Western Ghats montane rain forests. The Malabar Coast moist forests are found on the coastal plains.[9] The Western Ghats itself is a biodiversity hotspot.

Some of India's famous protected areas are found in South India. These include Project Tiger reserves Periyar National Park, Kalakad - Mundanthurai and Nagarjunsagar-Srisailam Tiger Reserve. Important ecological regions of South India are the Nilgiri Biosphere Reserve, located at the conjunction of the borders of Karnataka, Kerala and Tamilnadu in the Nilgiri Hills including Mudumalai National Park, Bandipur National Park, Nagarhole National Park Silent Valley National Park, Wayanad Wildlife Sanctuary and Nugu Wildlife Sanctuary and the Anamalai Hills including the Eravikulam National Park, Chinnar Wildlife Sanctuary, Parambikulam Wildlife Sanctuary and the adjacentThe Indira Gandhi Wildlife Sanctuary and National Park of the Western Ghats. Important bird sanctuaries including Ranganathittu Bird Sanctuary, Kumarakom Bird Sanctuary, Neelapattu Sanctuary and Pulicat Sanctuary are home to numerous migratory and local birds. Other protected ecological sites include the backwaters like the Pulicut Lake in Andhra Pradesh, Pitchavarum in Tamil Nadu and the famed backwaters of Kerala formed by the Vembanad Lake, the Ashtamudi Lake and the Kayamkulam Lake.
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