Tamil Nadu one of India's largest electrical equipment manufacturing companies, has manufacturing plants at Tiruchirapalli and Ranipet. India's leading steel producer, the state-owned Steel Authority of India has a steel plant in Salem. Sterlite Industries has a copper smelter at Tuticorin and an aluminium plant in Mettur. The Chennai Petroleum Corporation is a state-owned oil and gas corporation headquartered in Chennai, and owns refineries at Manali and Panangudi. The state government owns the Tamil Nadu Newsprint and Papers, in Karur. Jointly with the Tata Group, the state owns the world's sixth largest manufacturer of watches, under the brand name of Titan, at
Geography of Tamil Nadu Geography of Tamil Nadu Tamil Nadu is the eleventh largest state in India and covers an area of . It is bordered by Kerala to the west, Karnataka to the northwest, Andhra Pradesh to the north, the Bay of Bengal to the east and the Indian Ocean to the south. Cape Comorin (Kanyakumari), the southernmost tip of the Indian Peninsula which is the meeting point of the Arabian Sea, the Bay of Bengal, and the Indian Ocean. The western, southern and the north-western parts are hilly and rich in vegetation. Tamil Nadu is the only state in India which has