The board will implement the three-language formula from Class 6, while introducing a two-level system for mathematics and science starting in Class 9, officials said.
Under the new framework, languages will be structured across three stages — R1, R2 and R3 — in line with the National Curriculum Framework (NCF). At least two of the three languages studied must be Indian languages. From 2026–27, a third language will be made mandatory from Class 6, ensuring that all students learn at least two Indian languages.
CBSE said while schools are expected to follow the prescribed language scheme, exemptions may be granted in exceptional cases — such as students returning from foreign schools where the third language is not available in India. However, such students will still need to meet the overall subject requirements.
A key academic shift will come in mathematics and science, where a two-level system — standard and advanced — will be introduced for Class 9 students from 2026–27.
Under this model, all students will take a mandatory standard examination of 80 marks with a duration of three hours. Students seeking higher proficiency can opt for an additional advanced-level paper of 25 marks, lasting one hour, designed to assess deeper conceptual understanding and higher-order thinking skills.
While the standard exam will be compulsory, the advanced paper will remain optional. Scores from the advanced paper will not be added to the overall aggregate. Instead, students securing at least 50% will have an advanced-level qualification separately indicated in their mark sheets.
The first batch of Class 10 students under this new structure will appear for board examinations in 2028, the board said.
