In the GTU generally, you don't need to take care of this supplementary number and all, because it will not matter as long as you attach your supplementary properly.

Well, there are two numbers we should consider while talking about the number of supplementary. one is 5 to 7 digit number which you should write on another sheet which is in invigilator’s hand and second is a number for your reference to attach your all supplements in order that you written.

In the first case, that number is used when your supplements are missing or the thread that you wound is broken. until that, that number is also useless.

In the second case, if you attach your supplements properly in the order you never need to worry about that.