Srimad Bhagavatam Canto 08, Chapter 01, Text 24

SB 8.1.24

vasistha-tanayah sapta
 rsayah pramadadayah
satya vedasruta bhadra
 deva indras tu satyajit
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
During the reign of the third Manu, Pramada and other sons of Vasistha became the seven sages. The Satyas, Vedasrutas and Bhadras became demigods, and Satyajit was selected to be Indra, the King of heaven.
Srimad Bhagavatam Canto 08, Chapter 01, Text 23
Srimad Bhagavatam Canto 08, Chapter 01, Text 25