Scientific Aptitude Index
Know scientific aptitude, not just marks.
Explore Scientific Aptitude IndexNational Level ScienceX Olympiads
National Level Science Olympiad
Explore the syllabus, prepare with practice materials, and take part through your school. Find registration guidance, published dates and assessment information in one place.
Organised by ScienceX Education & Assessment Division of ScienceX Innovations.
Plan ahead
Dates to keep in mind
Check the published schedule and notices before choosing your exam session.
No upcoming dates published
Check the full calendar for previous milestones and read the latest notices for session updates.
Learning & preparation
What students can explore
Understand the assessment, prepare with purpose, and make sense of your results.
Concept-first Olympiad
Questions reward clarity, application, and reasoning.
Explore Concept-first OlympiadFree Mock Test
Practice early and enter the main cycle with confidence.
Explore Free Mock Test
Free Psychometric Test
See learner strengths beyond marks alone.
Explore Free Psychometric TestGetting started
Start your NLSO journey
Check the details
Read the syllabus, fees and latest schedule for your class and subject.
Explore Check the detailsRegister through your school
Follow the school registration instructions and keep your confirmation.
Explore Register through your schoolPrepare for the assessment
Use the syllabus, practice materials and mock-test guidance.
Explore Prepare for the assessmentNLSO Winners
Meet our NLSO achievers.
Explore published achievements from students and schools across assessment cycles.
National Rank 1
SATVIK
Class 10 | ST. ANNE'S CONVENT | 2025
Gold Medal + ₹20000/- Cash Prize
National Rank 2
MEHVISH RASHID
Class 12 | KENDRIYA VIDYALAYA BSF | 2025
Silver Medal + ₹15000/- Cash Prize
National Rank 3
ZAINAB
Class 12 | KENDRIYA VIDYALAYA BSF BANDIPUR | 2025
Bronze Medal + ₹10000/- Cash PrizeUseful downloads
Resources for your next step
Syllabus and preparation resources
Find syllabus guidance and preparation support aligned with the conceptual and analytical expectations of NLSO.
View resourcePublic notices and circular archive
Browse public notices, circulars, and official communication related to NLSO and NSAT.
View resourcePrevious Year Papers Add-on
Access the previous-year-paper support add-on at Rs. 100 as part of a clearer NLSO preparation journey.
View resourceOfficial updates
Latest notices
Read current announcements and updates from the organiser.
NLSO 2026 registration and notice board
Official circulars, registration announcements, milestone alerts, and public communication for the current Olympiad sessions.
View noticeFree Mock Test and Psychometric access announced
Explore mock-test and psychometric-test guidance, including access instructions for participants.
View noticePrevious Year Papers add-on available
Previous Year Papers Add-on Now Available
View notice