ISO (NSO) Olympiad

• Science Olympiad Foundation conducts ISO (NSO) every year.
• NSO (National Science Olympiad) has been renamed as ISO (International Science Olympiad).
• This year the dates for ISO (NSO) are 30th Oct, 19th Nov and 3rd Dec.
• NSO (Class 3-12) is a two level exam. Level 2 of NSO exam will be in February 2026 at the SOF designated centres.

• This page provides complete and updated information about NSO Results 2026-27, result dates, steps to check results, scorecard details, awards, and guidance on what to do after the results are declared.

SOF NSO Results

The result is declared 4-6 weeks after the last date of exam. The results are sent to the schools concerned. The results are also made available on official website of SOF - www.sofworld.org.

All the important information regarding Olympiads like date, time and venue is available on our website. So it is beneficial for you to register to our website www.sofolympiadtrainer.com or www.facebook.com/revisewise.

SOF NSO Ranking and Eligibility Criteria :

Students fulfilling either of the following 3 criteria will qualify for 2nd level Olympiads exams:

• Top 5% of students, class wise who appear for the 1st level exam. Due priority to marks scored in different sections will be given. 
• Zone wise/State wise top 25 rank holders from each class.
• Class topper, where at least 10 students from a class appear in the exam, & scores at least 50% marks. In case of section wise registrations, Class toppers will be from each section where participation in each section exceed 25 nos.
  

2nd level exam will be held for English, Science & Mathematics Olympiads (IEO, NSO & IMO) for students from class 3 onwards. In case two or more students score same total marks, ranks will be awarded to student scoring higher marks in sections accorded higher priority, as under.

In case two or more students score equally in all sections, they will be accorded same rank.

CRITERIA FOR RANKING IN 2ND LEVEL NSO OLYMPIAD:

In case of level 2 exams, ranks will be accorded on the following criteria:
Total Marks scored in level 2 exam.
In case two or more students score same number of marks, ranks will be determined on following criteria:

• Marks scored in sections in level two exam accorded higher priority.
• Total marks scored in Level one exam.
• Marks scored in sections, in level one exam, accorded higher priority.
  
• In case two or more students score same marks under all the categories above, they will be awarded the same rank.

CRITERIA FOR RANKING- SINGLE LEVEL OLYMPIAD EXAMS:

For class 1 & 2 students, appearing in IEO, ISO (NSO) and/or IMO exams, ranks will be accorded on the following criteria.

• Marks obtained in the exam.
  
• In case two or more students score same number of marks, ranks will be determined on the basis of marks scored in sections accorded more priority.
  
• Incase of a tie marks scored by a student in previous class may be considered to determine rank.
  
• In case two or more students score same marks under both the criteria above, they will be awarded the same rank.
  
• In case of any confusion decision of the Academic Council will be final & binding.