^^don't worry
since the superintendent has done it, i guess he knows what he was doing.
there is a very very rare chance of paper getting canceled.
out of lakhs of students surely you are not the only one who made this mistake.every year atleast 1000s must have made this mistake and i think CBSE must have given instruction for such cases. that's why superintendent did what he did.
before the answer sheet is sent it is verified once by the school. if it was a problem you would've been called. since you haven't been called everything is fine.
i remember when i was giving exams, i tied the answer sheets in wrong order(extra sheet 3, extra sheet 1, main paper extra sheet 2). since main sheet wasn't on first , i had so many sleepless nights and nightmares that i can not share.but nothing happened. i think because it was corrected during verification.
