21st, 20th, 19th, 18th NSO Answer key has been published here after the successful conduction of examination.
21st NSO 2018 Exam Answer Keys –
Class 1 (Set A)
Class 1 (Set B)
Class 1 (Set C)
20th NSO 2017 Exam Answer Keys –
Class 1 (Set A)
Class 1 (Set B)
Class 1 (Set C)
19th NSO 2016 Exam Answer Keys –
Class 1 (Set A)
Class 1 (Set B)
Class 1 (Set C)
18th NSO 2015 Exam Answer Keys –
Class 1 (Set A)
Class 1 (Set B)
Class 1 (Set C)
