Hello,
Here is the link for your 9th standard NSO Science set C solved Question paper for 2025. Kindly check the following link.
https://www.careers360.com/question-nso-9th-2025-26-set-c-answer-key
I hope this helps you.

The SOF NSO (National Science Olympiad) Class 9 Science Set C Question Paper for the 2025-2026 exam (held on December 11, 2025) is not officially released as a "solved question paper" by the SOF.

However, the official Answer Key (Solution) for NSO Class 9, Set C, Level 1 is expected to be released in December 2025. Once the Answer Key is available, you can use it to check your answers and calculate your score for the 60-mark paper (50 questions across Logical Reasoning, Science, and Achievers Section).

You can monitor and download the official NSO Set C Answer Key for Class 9 directly from the links on this page once it is officially published: https://school.careers360.com/articles/nso-answer-key