South India South India South India is the area including five Indian states of Andhra Pradesh, Karnataka, Kerala, Tamil Nadu and Telangana as well as three union territories of Lakshadweep, Andaman and Nicobar Islands, and Puducherry, occupying 19% of India's area (). Covering the southern part of the peninsular Deccan Plateau, South India is bounded by the Bay of Bengal in the east, the Arabian Sea in the west and the Indian Ocean in the south. The geography of the region is diverse with two mountain ranges–the Western and Eastern Ghats, bordering the plateau heartland. Godavari, Krishna, Kaveri, Tungabhadra and Vaigai rivers
Xiangkhoang Plateau the Xiangkhoang. Altitudes within the plateau area may reach 1000 m. Several tributaries of the Mekong drain in the plateau, such as the Nam Ngum, Ngiap and the Khan River. The major town in the area is the capital of Phonsavan. The plateau gives its name to present-day Xiangkhouang Province in which Phonsavan is located. The plateau is the location of the Plain of Jars, which is a collective name for several sites with funerary archeological remains nominated for UNESCO World Heritage status. The plateau is also one of the most heavily contaminated areas in the world from unexploded cluster