Sadhvi Prachi was born as Prachi Arya in a lower-middle-class family in Sirsali village in Uttar Pradesh in Bagpat District.

Prachi entered public life and the Sangh Parivar as a trainee and member of the Rashtriya Sevika Samiti, which is the women's arm of the Rashtriya Swayamsevak Sangh (RSS), but gained attention as a member of the Vishwa Hindu Parishad (VHP).