Diploma in School Management (DSM) 2022/2023 – National Institute of Education (Maharagama) 2022-03-202022-03-20 Applications.lk Closing Date – 2022-04-10 Sinhala Advertisement Preview ad-si-20220311-1 Sinhala AdvertisementDownloadOnline ApplicationApply OnlineSource – Dinamina (2022.03.11) Share this:TweetWhatsAppTelegram