Mangalore Refinery and Petrochemicals Limited (MRPL), a subsidiary of ONGC, has invited applications for the engagement of Graduate Apprentice Trainee (GAT) and Technician (Diploma) Apprentice Trainee (TAT) under the Apprentices Act, 1961. These positions are offered for a one-year training period and will be filled through a walk-in interview at KLE Technological University, Hubballi on 22 January 2026. Applicants must register on the NATS portal before attending the interview. Fresh engineering degree and diploma holders from the years 2021 to 2025 are eligible to apply.