Aravali International School, Sector 81, Greater Faridabad (Primary School) Aravali International School, Sector 81, Greater Faridabad is an extension to the Sector 85 branch. The lush green playground at the back of the school is the star attraction of many parents and children. The ground has been used not only for various sports activities but also to let children run out aimlessly to relieve themselves from the mental fatigue and the boredom. Children are admitted in the Pre primary at the age of 2+ years of age in Aravali Montessori. It is believed that the first six years of the child's life is the most colorful and joyful period of their life. AIS Sector 81 makes a striking balance between academics and the co curricular activities at the primary level.