i passed my 12th board in 2015. i got 64.5% . i applied for improvement exam which will held on 2016. while filling other other examination form which column should i choose==="appearing for 12th exam"(give new roll no. which will come in feb) OR "appeared for 12th exam"(give old roll no.). In case if i give old roll no. then they will not consider my improvement marks, then what the reason for giving improvement exam.........