Avabai Petit was founded in 1913 as a Boarding school for Parsee girls upto the Primary level .The school began with 40 pupils. It has since then been administered by a Board of Trustees. In 1963 the Board decided to accept day scholars from all communities. The school has gradually developed over the years until it has evolved into a full fledged Secondary School. The school is a recognized private unaided minority institution. The school is affiliated to the Council for the Indian School Certificate Examination, which has its office in New Delhi. It prepares students for the ICSE (Class X) examinations. The first batch of Class X had appeared for the ICSE examination in 2012 In the heart of the city lies our school campus that houses large and airy classrooms and residential quarters for the Boarding section. The Boarding section is restricted to the Parsee children. The school has 14 classes, commencing with the Playschool upto the 10th class. The classes are spread across 7 acres of lush green land. The school endeavours to keep the number of students per class to a minimum, balancing efficiency and quality, with economy. The present strength of the school is approximately 1120 students and teaching staff.