Hello,

I hope you are doing fine, The NIOS is a National Board for Secondary and Senior Secondary Examinations similar to the Central Board of Secondary Education ( CBSE ). The National Institute of Open Schooling (NIOS) offers various open and distance learning programmes up to pre-degree level. It conducts Class 12 board exams for Science and other important streams. The core subjects of NIOS Class 12 Science stream are Physics, Chemistry, and Biology .

A minimum of 33% marks in the aggregate (Theory plus Practicals where applicable) in the public examination. A minimum of 33% marks (separately in theory and Practicals in subjects having both and also in aggregate) in the public examination.

I hope you find this information helpful. I wish you all the best for your future.

Good Luck

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