The management of private unaided schools shall collect 85% of the annual school fees (based on the fee fixed for the academic year 2019-2020) for 2021-2022 in six instalments from those students/parents such as State and Central government employees, public sector undertakings, professionals and business owners who have not suffered a loss of income during this pandemic, provided online classes were held, a release from N Nandakumar, commissioner, School Education Department, stated.