Yajurveda is exceedingly crucial from the historical point of view, because it demonstrates the alterations in social and religious conditions, which had entered the society from the time of Rig Veda. It contains ancient prose mantras and also verses that have been borrowed from the Rig Veda. It is divided into two parts-White and Black Yajurveda. The former consists of hymns and verses and incorporates commentaries for the sacrifice with explanation in separate Brahmana work, while these explanations in the latter are contained in it.