National Level Science Olympiad (NLSO)

Testing the knowledge and competency of students in Science based on the syllabus prescribed by CBSE, ICSE and State Boards.

About NLSO

The National Level Science Olympiad (NLSO) is a National Level Competitive Examination designed to test the knowledge and competency of students in Science, based on the syllabus prescribed by CBSE, ICSE, and State Boards.

Students from Classes I to X are eligible to participate in this examination. For Classes I and II, the focus is on evaluating basic scientific awareness, observation skills, and conceptual understanding in an age-appropriate manner. For Classes III to X, the examination assesses subject knowledge, conceptual clarity, and application of scientific principles as per their respective class curriculum.

Students can participate in this competitive examination only through their schools.

Exam Details
Exam Date: November 17, 2025
Last Date for Registration: September 20, 2025
Eligibility: Classes I to X
Fees (India): ₹150 per student
Fees (Outside India): 8 USD per student
Mode of Exam: Offline
Objectives of NLSO
  • To provide a National level platform for students to compete with their peer in Science
  • To provide an opportunity to begin a systematic preparation towards competitive examinations those come after Class X and XII.
  • To strengthen the understanding of concepts and skills
How is it beneficial to students?
  • Improves the academic performance of students.
  • Stimulates the student's interest and enthusiasm in problem solving, creative thinking and critical analyzing
  • Opportunity to explore and nurture the creativity and talents.
  • It helps students to systematically prepare and confidently appear for various competitive examinations like IIT-JEE, NEET, CAT, GMAT, Civil Service Exams, IBPS etc
  • Develops confidence and competency in students.
  • Participation Certificate to all the participants for each examination. Excellence certificate to students scoring 60% and above marks
Exam Pattern & Mark Distribution
All questions are of objective type (MCQs). Each correct answer carries two marks, and there are no negative marks for wrong answers. The duration for all classes is 60 minutes.

For Classes I & II

SectionNo. of QuestionsMarks per QuestionTotal Marks
Environmental Awareness & Science (EVS basics)18236
Test of Reasoning7214
Grand Total2550

For Classes III to V

SectionNo. of QuestionsMarks per QuestionTotal Marks
Science / Environmental Science40280
Mental Ability and Test of Reasoning10220
Grand Total50100

For Classes VI to X

SectionNo. of QuestionsMarks per QuestionTotal Marks
Physics15230
Chemistry15230
Biology10220
Mental Ability and Test of Reasoning10220
Grand Total50100
Syllabus

Sample Questions
Download model question papers to get a feel for the exam format and question types.
Model Question Paper Class IIIDownload
Model Question Paper Class IVDownload
Model Question Paper Class VDownload
Model Question Paper Class VIDownload
Model Question Paper Class VIIDownload
Model Question Paper Class VIIIDownload
Model Question Paper Class IXDownload
Model Question Paper Class XDownload
Awards & Prizes

National Level Awards

  • First Rank (Classes III-X): ₹ 10,000, Gold Medal & Certificate
  • Second Rank (Classes III-X): ₹ 5,000, Gold Medal & Certificate
  • Third Rank (Classes III-X): ₹ 2,000, Gold Medal & Certificate
  • Next 50 Students (A1/A2 Grade, Classes III-X): Gold Medal, Resource book & Certificate
  • Next 100 Students (A1/A2 Grade, Classes III-X): Gold Medal & Certificate

School Level Prizes

  • Best Performance Award: For schools with minimum 1200 enrollment, the top-scoring student receives ₹ 5,000, a Gold Medal, and a Certificate. (One prize per school)
  • Class Toppers (min. 50 enrollments): Top two rank holders receive a Gold Medal & Resource Book and a Silver Medal, respectively.
  • Class Toppers (min. 25 enrollments): Top two rank holders receive a Gold Medal and a Silver Medal, respectively.

General Recognition

  • Certificate of Excellence: Awarded to all participants achieving a B2 grade or higher.
  • Participation Certificate: Issued to all participants.