State Forest Research Institutes (SFRIs) are autonomous research organizations under state forest departments, working under the overall guidance of the Indian Council of Forestry Research and Education (ICFRE) in Dehradun. They conduct applied research on silviculture, agroforestry, forest genetics, NTFP (Non-Timber Forest Products), forest soil health, biodiversity conservation, and watershed management. A Research Officer designs and executes research projects, publishes findings in scientific journals, advises state forest departments on species selection for afforestation under the Green India Mission, and contributes to state-specific forest policy development.

Key silviculture topics include silvicultural systems (clear felling, selection system, shelter wood, coppice systems and their suitability for different forest types), site quality assessment, seed technology and nursery management, artificial regeneration techniques (plantation forestry), natural regeneration through seedling banks, treatment of degraded forests, and agroforestry systems (boundary planting, block planting, alley cropping). India's major timber species (teak, sal, deodar, eucalyptus, bamboo) and their silvicultural requirements are important, along with Champion and Seth classification of India's forest types.

SFRI research takes place primarily within forest areas, subject to the Forest Conservation Act 1980, which requires central government approval for diverting forest land to non-forest use. Research plots for invasive species studies or genetic trials near reserved forest boundaries require forest department clearances. The Wildlife Protection Act 1972 governs research within wildlife sanctuaries and national parks, requiring special permits. The Environment Protection Act 1986 and EIA Notification 2006 apply when SFRI proposes permanent structures like laboratory buildings or research centres within or near forest land.

Ecology questions cover population ecology (logistic growth, competition, predation, mutualism), community ecology (succession, climax communities, edge effect, island biogeography theory), ecosystem ecology (energy flow, biogeochemical cycles — carbon, nitrogen, phosphorus, water), biodiversity metrics (Shannon-Wiener index, Simpson index, species richness, species area relationship), forest carbon accounting methods (IPCC Volume III guidelines, allometric equations), and landscape ecology (forest fragmentation, habitat corridors, metapopulation dynamics). India's biodiversity hotspots — Western Ghats, Eastern Himalayas, Indo-Burma — and their conservation status are tested.

Research methodology questions cover experimental design (RBD, CRD, factorial designs for silvicultural trials), statistical analysis (ANOVA, regression analysis for growth modelling, chi-square for species distribution data), scientific writing (preparation of research proposals, technical reports, and journal papers), literature review methods, data management using statistical software, remote sensing for forest research (tree crown mapping, canopy cover estimation), and field research techniques (vegetation transects, quadrats, point-quarter method for forest composition assessment).