Vijaya Sridharan was the principal of Scindia Kanya Vidyalaya, Gwalior. She was also the director of the Pravara group of schools, Maharashtra. She has also taught at several schools in Delhi and Chennai. She has over 20 years of experience teaching social science to middle and senior school students. She authored a series of middle school history books for Macmillan.
Hemalatha Seshadri was formerly the head of the department of social science, Padma Seshadri Bala Bhavan Senior Secondary School, Nungambakkam, Chennai (this is one of the leading schools of India). Having completed her Masters in History from Jawaharlal Nehru University, New Delhi, she has been teaching for over 25 years now.  She is currently the principal of PSBB International School at Coimbatore. 
Mahalakshmi Ramjee teaches geography to senior classes in Padma Seshadri Bala Bhavan Senior Secondary School, Nungambakkam, Chennai. She has an MA in English, an MA in Economics, an MSc in Geography and an M.Ed. She has over 20 years of teaching experience.