Indian Oil Corporation Limited (IOCL) has announced recruitment for 501 apprentice positions, including Trade Apprentice, Technician Apprentice, and Graduate Apprentices. The application process is now open on the official IOCL apprenticeship portal. Candidates must register on either the NAPS or NATS site depending on the apprentice type. Eligibility requires a minimum age of 18 and a maximum of 24, with age relaxations for reserved categories. Educational qualifications vary by apprentice type, with Class 10 and ITI for Trade Apprentices.