<P> The Nalayira Divya Prabandha (or Nalayira (4000) Divya Prabhamdham) is a divine collection of 4,000 verses (Naalayira in Tamil means' four thousand') composed before 8th century AD (1), by the 12 Alvars, and was compiled in its present form by Nathamuni during the 9th--10th centuries . The Alvars sung these songs at various sacred shrines . These shrines are known as the Divya Desams . </P> <P> In South India, especially in Tamil Nadu, the Divya Prabhandha is considered as equal to the Vedas, hence the epithet Dravida Veda . In many temples, Srirangam, for example, the chanting of the Divya Prabhandham forms a major part of the daily service . Prominent among the 4,000 verses are the 1,100 + verses known as the Thiru Vaaymozhi, composed by Nammalvar (Kaaril Maaran Sadagopan) of Thiruk Kurugoor . </P> <P> Ancient and medieval era Hindu texts for specific fields, in Sanskrit and other regional languages, have been reviewed as follows, </P> <Table> <Tr> <Th> Field </Th> <Th> Reviewer </Th> <Th> Reference </Th> </Tr> <Tr> <Td> Agriculture and food </Td> <Td> Gyula Wojtilla </Td> <Td> </Td> </Tr> <Tr> <Td> Architecture </Td> <Td> P Acharya, B Dagens </Td> <Td> </Td> </Tr> <Tr> <Td> Devotionalism </Td> <Td> Karen Pechelis </Td> <Td> </Td> </Tr> <Tr> <Td> Drama, dance and performance arts </Td> <Td> AB Keith, Rachel Baumer and James Brandon, Mohan Khokar </Td> <Td> </Td> </Tr> <Tr> <Td> Education, school system </Td> <Td> Hartmut Scharfe </Td> <Td> </Td> </Tr> <Tr> <Td> Epics </Td> <Td> John Brockington </Td> <Td> </Td> </Tr> <Tr> <Td> Gnomic and didactic literature </Td> <Td> Ludwik Sternbach </Td> <Td> </Td> </Tr> <Tr> <Td> Grammar </Td> <Td> Hartmut Scharfe </Td> <Td> </Td> </Tr> <Tr> <Td> Law and jurisprudence </Td> <Td> J Duncan M Derrett </Td> <Td> </Td> </Tr> <Tr> <Td> Lexicography </Td> <Td> Claus Vogel </Td> <Td> </Td> </Tr> <Tr> <Td> Mathematics and exact sciences </Td> <Td> Kim Plofker David Pingree </Td> <Td> </Td> </Tr> <Tr> <Td> Medicine </Td> <Td> MS Valiathan, Kenneth Zysk </Td> <Td> </Td> </Tr> <Tr> <Td> Music </Td> <Td> Emmie te Nijenhuis, Lewis Rowell </Td> <Td> </Td> </Tr> <Tr> <Td> Mythology </Td> <Td> Ludo Rocher </Td> <Td> </Td> </Tr> <Tr> <Td> Philosophy </Td> <Td> Karl Potter </Td> <Td> </Td> </Tr> <Tr> <Td> Poetics </Td> <Td> Edwin Gerow, Siegfried Lienhard </Td> <Td> </Td> </Tr> <Tr> <Td> Gender and Sex </Td> <Td> Johann Jakob Meyer </Td> <Td> </Td> </Tr> <Tr> <Td> State craft, politics </Td> <Td> Patrick Olivelle </Td> <Td> </Td> </Tr> <Tr> <Td> Tantrism, Agamas </Td> <Td> Teun Goudriaan </Td> <Td> </Td> </Tr> <Tr> <Td> Temples, Sculpture </Td> <Td> Stella Kramrisch </Td> <Td> </Td> </Tr> <Tr> <Td> Scriptures (Vedas and Upanishads) </Td> <Td> Jan Gonda </Td> <Td> </Td> </Tr> </Table>

What is the common language of hindu scriptures