sir, i m in +2 standard in medical stream
i already have a lot of burden of chemistry and physics and when it comes to optional subject i thought it will be scoring one
but mathematics is really difficult. its even more difficult than physics
i want to opt biotechnology

in place of it.I am from J&k board of school education.
is there any way?
pleaseeeee tell me...
i'll be very thankful to you.