which part of rigveda gives an account of the origin of the universe
Nasadiya Sukta The Nasadiya Sukta (after the incipit ná ásat, or "not the non-existent"), also known as the Hymn of Creation, is the 129th hymn of the 10th Mandala of the Rigveda (10:129). It is concerned with cosmology and the origin of the universe.[4]