CBSE has made provisions for the sportsperson to appear for their class 10 and 12 board exams at a later date if their international sports events dates clash with the datasheet. This decision of CBSE has made possible for the students pursuing sports and representing India at the international level need not miss either. As per the circular issued by CBSE this facility will be extended to each student representing India at any of the international sports events recognized by the Sports Authority of India. The examination will be conducted at a mutually convenient date before the declaration of board results.
The students desirous to avail this facility will have to inform the board’s regional offices in writing through their school along with recommendations from SAI latest by January 31st.
Source: https://www.thebetterindia.com/168044/cbse-board-exams-sports-india/