DIFFERENCE BETWEEN NON PAY LEAVE, LEAVE WITHOUT PAY AND EXTRAORDINARY LEAVE

IF AN EMPLOYEE APPLIED FOR 3 DAYS LEAVE, BUT HE HAS NO LAP,LHAP,CLIN HIS CREDIT. SO HOW TO TREAT THIS THREE DAYS LEAVE?. IF AN APPRENTICE APPLIED FOR ONE DAY LEAVE, BUT HE HAS NO LEAVE IN HIS CREDIT, HOW THIS ONE DAY LEAVE IS TREATED OR NAMED(NON-PAY LEAVE,LEAVE WITHOUT PAY, EXTRAORDINARY LEAVE)?. WHO CAN SANCTION SUCH LEAVE?

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