Oil India Limited Apprentice 146 vacancies. Oil India Limited notification for the recruitment of Diploma Apprentice (Grade VII) vacancies. Qualification : Candidates should possess Diploma (Engg) Posts : 146 Age Limit (09-12-2021) Minimum Age Limit: 18 Years Maximum Age Limit: 30 Years Age relaxation is admissible as per rules. Application Fee : For General/ OBC: Rs.200/-  For SC/