How was Zetsu able to identify the Asura and Indra transmigrants over the years?


How did Zetsu know that Madara was Indra's reincarnation ?




Zetsu was created by Kaguya. Essentially, he was her will, ensuring her
revival. The Uchiha and Senju clans originated from Kaguya. So I'm pretty sure
he'd be able to tell.

