Kerala PSC Health Inspector exam is distinctive for its inclusion of Biology and Chemistry as separate science-based sections alongside Public Health and General Studies. This reflects Kerala's high academic standards and the state's expectation that health inspectors possess strong scientific foundations. The exam has a 75-minute duration (shorter than most similar exams) and a negative marking of 0.33, demanding both speed and accuracy. Kerala's near-100% literacy rate means candidates face a highly educated competitive pool. The exam is conducted online through Kerala PSC's standardized examination infrastructure.

The Biology section tests knowledge relevant to public health foundations: microbiology (bacteria, viruses, fungi, parasites—classification, pathogenicity, control), human anatomy and physiology (major organ systems, biochemical processes), ecology and environment (food chains, pollution, biodiversity), genetics and heredity (Mendelian genetics, genetic disorders), zoology and botany (major disease vectors—mosquitoes, flies, rodents; and medicinal plants), and cell biology basics. These topics provide the scientific foundation for understanding disease transmission, vector biology, and environmental health—directly relevant to health inspector work.

The Chemistry section focuses on topics with public health relevance: water chemistry (pH, hardness, chlorination, fluoride levels, heavy metal contamination), food chemistry (food additives, preservatives, adulterants, nutritional chemistry), environmental chemistry (air pollutants, pesticides, industrial effluents, hazardous chemicals), disinfectants and antiseptics (types, mechanisms, applications), basic organic chemistry (functional groups, common compounds relevant to toxicology), and analytical chemistry methods used in environmental and food testing. This chemistry knowledge directly applies to health inspector duties in water quality monitoring and food safety inspection.

Kerala PSC (Public Service Commission) is Kerala's constitutional body for government recruitment. The Health Inspector exam is conducted through an online objective test followed by rank list preparation. Kerala PSC maintains category-wise ranked lists and candidates are selected based on rank and vacancies as they arise in Local Self Government bodies (Panchayat, Municipality) and state health departments. Kerala's unique panchayat-level health administration means many Health Inspectors work under Local Self Government Department, making familiarity with Kerala's decentralized governance model an advantage.

In Kerala's highly decentralized governance model, Health Inspectors often work under Panchayats, Municipalities, and Municipal Corporations rather than directly under the state health department. Their duties include food safety inspections of hotels and restaurants within the local body jurisdiction, sanitation inspection and enforcement under local body health rules, managing vital statistics (birth and death records), coordinating immunization and health education programs, environmental health monitoring, and epidemic response at the local level. Kerala's high community awareness and active local democracy make health inspector work collaborative and community-centric.