You can download Model papers for 2017 GCE O/L (Ordinary Level) Examination here. These Model papers were prepared by well experienced teachers in Sri Lanka:
New Model Papers for 2018 O/L exam
O/L 2017 Maths Model Paper by Lahiru Kadurugamuwa
O/L Mathematics Model Papers were prepared by Lahiru Kadurugamuwa, University Undergraduate, who conducts O/L Mathematics Classes at Piliyandala.
O/L Model Papers for Science, Sinhala and Other Subjects
2017 Model Papers from e-thaksalawa
Science
Sinhala Language and Literature සිංහල භාෂාව හා සාහිත්යය
More Model Papers from e-thaksalawa - Maths, History, ICT, Geography
http://www.e-thaksalawa.moe.gov.lk/moodle/course/view.php?lang=si&id=529
Download last year O/L Model Papers
Watch video lessons from Jathika Pasala
O/L 2017 More Links
2017 O/L Time Table
2020 A/L Classes
Improvement
can I get o/l model papers for second language tamil
can i get o/l model papers or past papers book in isurupaya
can i get o/l model papers or past papers book
Download O/L Papers
http://www.e-thaksalawa.moe.gov.lk/web/en/question-papers/ordinary-level/424-2014-02-18-17-17-41.html
Download O/L Model papers
http://www.e-thaksalawa.moe.gov.lk/moodle/course/view.php?id=826
can i get english medium buddhism o/l model papers 2018