Courses by National Institute of Education (NIE) / Courses in Sri LankaDiploma in Teaching English as a Second Language 2021 – National Institute of Education September 2, 2020September 2, 2020 Closing Date – 2020-September-31 Diploma in Teaching English as a Second Language 2021 – National Institute of Education English AdvertisementDownloadSource – Sunday Observer (2020.07.19)