in 11th i had chosen marathi language as a optional subject now i am in 12th std i want to change it i told my principal that situation he has taken written application from me and also told that if amy problem will arise you should have to phase it will be not responsible for it

If your principal accepted your written application for the subject change, the school has noted your request — but since you’re in Class 12, changes after registration with the board (like CBSE, HSC, etc.) may not be accepted officially. That’s why your principal mentioned they won’t be responsible if any issue arises during board verification or marks entry.

You can still confirm with your board office or regional education department to know if subject change is allowed at this stage.