NCL 577 Various Vacancies Exam Answer Key :- Northern Coalfields Limited (NCL) has been released the Answer Key on 11/07/2026 for the Post of Hemm Operator, Paramedical & Overseer (CIVIL) on 577 Seats under the Advertisement No. Ref: NCL/SING/HR/ Direct-Recruitment/ 2026-27/125 Northern Coalfields Limited, a subsidiary of Coal India Limited, invites ONLINE applications from eligible citizens of India for direct recruitment to the posts of HEMM Operator (Trainee) in various designations, Paramedical Staff in different categories, and Overseer (Civil). These positions are to be deployed across the mines, establishments, hospitals, and dispensaries of NCL located in the Singrauli District of Madhya Pradesh and the Sonbhadra District of Uttar Pradesh.