IOCL Graduate Apprentice 2021: Indian Oil Corporation Limited The Indian Oil Corporation Limited (IOCL) has published the IOCL Recruitment 2021 Notification for recruiting Fresh Engineering Graduates as Engineers / Officers on Regular Basis in IOCL & Also for engaging some Engineers as Graduate Apprentice Engineers. This recruitment will be through GATE 2021. Detailed notification, Apply Online form link, Educational Qualification, Selection Process & Other Relevant Details for IOCL Recruitment 2021 are provided below.