From 2012, he served as the principal of the Burn Hall Higher Secondary School in Srinagar, Jammu and Kashmir.

He was consecrated a bishop by Salvatore Pennacchio with Anil Joseph Thomas Couto and Felix Anthony Machado as co-consecrators.

The consecration ceremony took place on the grounds of the Presentation Convent School in Gandhi Nagar, Jammu.

On his episcopal ordination he chose the motto: Pax Nuntiata Est (Latin for 'Peace Is Announced').

Pereira succeeded Bishop Peter Celestine, who resigned soon after reaching the retirement age of 75.