Oil & Natural Gas Corporation Limited (ONGC) Recruitment 2019 737 Posts. Post Various Total Vacancy: 737 Brief Information: Oil & Natural Gas Corporation Limited (ONGC) invites applications for the recruitment of Assistant Technician, Technical Assistant, Security Supervisor & Other vacancies. Application Fee For General/ OBC: Rs. 370/- (Fee: Rs. 299.20/- + Bank charges: Rs. 60/- + GST: Rs. 10.80/-) For SC/ ST/ PwD/