The most important mantra of the Sun is Surya Ved Mantra jaap, which ensures the harmony and prosperity of nature. The famous Vedic chant 'Asatoma Satya' consists of 18 verses including this mantra.

Vedic Chat or Vedic Hymn was the oral tradition of Vedas to chat their Vedic mantras. It may be in a form of pathas or recitation.

it is a term of the vedic age

Ravi Prakash Arya has written:

'Somayaga (Vedic Process of Rainformation)'

'Dhanurveda, the Vedic military science'

'Nature of Science and Technology in the Vedic Age'

'A Vedic concordance' -- subject(s): Concordances, Vedas

'Vedic meteorology' -- subject(s): History and criticism, Vedic literature, Meteorology in literature

'Weather Forecast in Vedic Times'

the vedic lit. is divided into 2 groups

on the basis of there age of composition

early vedic and the later vedic

A] early vedic literature which comprises of the four principle vedas,brahmanas , aranyakas , upanishads etc.

B] later vedic lit. which u didnt asked so i m not goin to answer