1979. The thermal power plants under construction include the coal-based 1000 MW NLC TNEB Power Plant. From the current 17MW installed solar power, Tamil Nadu state government's new policy aims to increase the installed capacity to 3000MW by 2016. Kamuthi Solar Power Project was commissioned by Adani Power in Kamuthi, Ramanathapuram district. With a generating capacity of 648 MWp at a single location, it is the world's sixth largest (as of 2018) solar park. Culture Tamil Nadu is known for its rich tradition of literature, art, music and dance which continue to flourish today. Tamil Nadu is a land most known for its monumental ancient Hindu temples and classical form of dance Bharata Natyam. Unique cultural features like Bharatanatyam (dance), Tanjore painting, and Tamil architecture were developed and continue to be practised in Tamil Nadu. Literature Tamil written literature has existed for over 2,300 years. The earliest period of Tamil literature, Sangam literature, is roughly dated from ca. 300 BCE – 300 CE. It is one of the oldest Indian literature amongst all others. The earliest epigraphic records found on rock edicts and hero stones date from around the 3rd century BCE. Most early Tamil literary works are in verse form, with prose not becoming more common until later periods. The Sangam literature collection contains 2381 poems composed by 473 poets, some 102 of whom remain anonymous. Sangam literature is primarily secular, dealing with everyday themes in a Tamilakam context. The Sangam literature also deals with human relations and emotions. The available literature from this period was categorised and compiled in the 10th century into two categories based roughly on chronology. The categories are: Pathinenmaelkanakku (The Major Eighteen Anthology Series) comprising Eṭṭuttokai (The Eight Anthologies) and the Pattupattu (Ten Idylls) and Pathinenkilkanakku (The Minor Eighteen Anthology Series). Much of Tamil grammar is extensively described in the oldest known grammar book for the Tamil language, the Tolkāppiyam.Modern Tamil is largely based on the 13th-century grammar book which restated and clarified the rules of the Tolkāppiyam, with some modifications. Traditional Tamil grammar consists of five parts, namely , sol, , yāppu, . Of these, the last two are mostly applied in poetry. Notable example of Tamil poetry include the Tirukkural written by Tiruvalluvar. In 1578, the Portuguese published a Tamil book in old Tamil script named 'Thambiraan Vanakkam', thus making Tamil the first Indian language to be printed and published. Tamil Lexicon,