- Indian Oil Corporation Limited has published a recruitment notification regarding the recruitment of 383 Trade and Technician Apprentice Posts in various trades for Guwahati, Bongaigaon and Digboi Oil refineries. Applications are invited in the Online Application intending candidates for filling up the following vacancies post for IOCL Recruitment 2022IOCL Recruitment. Interested candidates can apply online for IOCL Apprentice Recruitment before 23 Oct 2022. Other details of the IOCL Apprentice Recruitment like age limit, educational qualification, selection process, application fee and how to apply are given below.