Sir I passed 12th exam in 2015.but my mark in math is low.can I improve this any other method like open exam in one sub.please tell me.
Dear Aspirant,
I am sorry to say that if you have passed the exam then you cannot appear just for one paper for improvement but if you want to improve your result you can do it by applying in NIOS boards but on that board, you have to appear in the whole exam.
I hope this will solve your query.
Good luck