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Padmanabhapuram Palace, also known as Kalkulam Palace, is a Travancore era palace located in Padmanabhapuram in the Kanyakumari district of the Indian state of Tamil Nadu.

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Tamil Nadu's boundaries are as follows: Andhra Pradesh to the North, Karnataka to the Northwest, Bay of Bengal and Puducherry to the East, Indian Ocean to the South, Kerala to the West.

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Subramanya Bharathi (1882-1921) was a Tamil writer, poet, journalist, Indian independence activist and social reformer, popularly known as Mahakavi Bharathiyar.

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There are 17 major river basins found in Tamil Nadu. These are: Palar, Varaha Nadhi, Ponnaiyar, Vellar, Paravanar, Cauvery, Agniyar, Pambar, Kottakaraiyar, Vaigai, Gundar, Vaippar, Kallar, Thamiraparani, Nambiar, Kodayar, PAP. Most of the rivers which drain Tamil Nadu originate from uplands Western Ghats and Eastern Ghats. Among the 17 basins Cauvery river basin is the wider one.

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Tamil Nadu Express is a superfast train operated by Indian Railways running between Chennai Central and New Delhi. Inaugurated by the then Prime Minister, Indira Gandhi, this train first started in 1976 and was the only train that was a non-Rajdhani, but still considered to be the fastest, back in the day.

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Industry, with 50% of India's textile mills in Tamil Nadu and complementary clusters of knitting, weaving and medical devices manufacturing in Coimbatore and Tiruppur, the region provides immense opportunities for Meditech investments.

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Pandyas were the patrons of Sangam, an assembly of Tamil poets. Pandya kings find mention in a number of poems in the Sangam literature.