Oil India Limited (OIL) Duliajan is recruiting for Retainer Doctor positions on a contractual basis. The recruitment is for immediate engagement at Field Headquarters, Duliajan. Applicants must possess an MBBS degree with a minimum of one year's internship and a valid registration certificate from the MCI/SMC. Interested candidates should attend a walk-in-interview on January 20, 2026, at the Occupational Health Centre, OIL Hospital, Duliajan, Assam, with all required original and self-attested documents.