text: there is substantially older epigraphy in the Indus script, which dates back to the early 3rd millennium BCE. Two other important archeological classes of symbols are found from the 1st millennium BCE, Megalithic graffiti symbols and symbols on punch-marked coins, though most scholars do not consider these to constitute fully linguistic scripts, and their semiotic functions are not well understood.
  Writing in Sanskrit (Epigraphical Hybrid Sanskrit, EHS) appears in the 1st to 4th centuries CE.
  Indian epigraphy becomes more widespread over the 1st millennium, engraved on the faces of cliffs, on pillars, on tablets of stone, drawn in caves and on rocks, some gouged into the bedrock. Later they were also inscribed on palm leaves, coins, Indian copper plate inscriptions, and on temple walls.
  Many of the inscriptions are couched in extravagant language, but when the information gained from inscriptions can be corroborated with information from other sources such as still existing monuments or ruins, inscriptions provide insight into India's dynastic history that otherwise lacks contemporary historical records.
  Of the c. 100,000 inscriptions found by the Archaeological Survey of India, about 60,000 were in Tamil Nadu;. Over 25,000 Kannada inscriptions were unearthed in Karnataka, though an in depth study of many of these is yet to be conducted according to Hampi Kannada University Sociology department Head and Researcher Devara Kondareddy. Over 14,000 inscriptions belonging to the Telugu language were excavated in Andhra Pradesh and Telangana. This makes Tamil and the two South Indian languages( Kannada and Telugu) the most densely inscribed languages in the country.