Niyathi, niyathi*–  It can be translated as Fate, Fate, or it is written.

During the time of Buddhism and Jainism (6th century BC to 4th century AD), ancient India and religion was undergoing a philosophical revolution.  People moved away from the rigid Varna system of Hinduism and the  ritualistic practices that were associated with Hinduism. Many new philosophies like fatalists and Agiviks ( atheists) abounded rubbing shoulders with other philosophies that propounded divinity outside Brahmanism and their rituals.  These philosophies either got merged into more rigorously practiced and more famous philosophies that swept through or got lost in time, remaining in hidden cave temples that lay forgotten in time. There are some cave temples in Bihar called Barabar Caves,  that bare testament to these philosophers. that date back to the Maurya Empire(322–185 BCE).

Swetha ambar, the old Master in white robes is a follower of Ajivika siddhanta, or fatalism, who believe that every thing is predestined, and we are creature of fate.  He says Niyathi,  Niyathi  all the time as if it were a solution to all questions.