While aspects of Vedic sacrificial ritual persisted, new temple methods and offerings in the form of Oṃ namo bhagavate vāsudevāya: "Om, obeisance into the illustrious Vāsudeva (Kṛṣṇa )." This mantra is The most usually recited by Vaiṣṇavas, followers of the different sects focused on the worship of Viṣṇu or Kṛṣṇa. https://large-directory.com/listings13288183/fascination-about-mantra